Sometimes it has a variant value which read from DT or SMBIOS by
ath11k, and meanwhile it does not have the matched board name in
board-2.bin, then it will failed at boot up phase.

Add fallback board name which removed variant value and search again
in board-2.bin when failed with variant and try to load the board
data again to increase boot up success rate.

dmesg log after this patch:
[169547.248472] ath11k_pci 0000:05:00.0: boot using board name 'bus=pci,vendor=17cb,device=1103,subsystem-vendor=17cb,subsystem-device=3374,qmi-chip-id=2,qmi-board-id=262,variant=test'
[169547.248565] ath11k_pci 0000:05:00.0: boot firmware request ath11k/WCN6855/hw2.0/board-2.bin size 180324
[169547.248568] ath11k_pci 0000:05:00.0: board name
[169547.248570] ath11k_pci 0000:05:00.0: 00000000: 62 75 73 3d 70 63 69 2c 76 65 6e 64 6f 72 3d 31  bus=pci,vendor=1
[169547.248571] ath11k_pci 0000:05:00.0: 00000010: 37 63 62 2c 64 65 76 69 63 65 3d 31 31 30 33 2c  7cb,device=1103,
[169547.248572] ath11k_pci 0000:05:00.0: 00000020: 73 75 62 73 79 73 74 65 6d 2d 76 65 6e 64 6f 72  subsystem-vendor
[169547.248574] ath11k_pci 0000:05:00.0: 00000030: 3d 31 37 63 62 2c 73 75 62 73 79 73 74 65 6d 2d  =17cb,subsystem-
[169547.248575] ath11k_pci 0000:05:00.0: 00000040: 64 65 76 69 63 65 3d 33 33 37 34 2c 71 6d 69 2d  device=3374,qmi-
[169547.248576] ath11k_pci 0000:05:00.0: 00000050: 63 68 69 70 2d 69 64 3d 32 2c 71 6d 69 2d 62 6f  chip-id=2,qmi-bo
[169547.248577] ath11k_pci 0000:05:00.0: 00000060: 61 72 64 2d 69 64 3d 32 36 32                    ard-id=262
[169547.248578] ath11k_pci 0000:05:00.0: board name
[169547.248579] ath11k_pci 0000:05:00.0: 00000000: 62 75 73 3d 70 63 69 2c 76 65 6e 64 6f 72 3d 31  bus=pci,vendor=1
[169547.248581] ath11k_pci 0000:05:00.0: 00000010: 37 63 62 2c 64 65 76 69 63 65 3d 31 31 30 33 2c  7cb,device=1103,
[169547.248582] ath11k_pci 0000:05:00.0: 00000020: 73 75 62 73 79 73 74 65 6d 2d 76 65 6e 64 6f 72  subsystem-vendor
[169547.248583] ath11k_pci 0000:05:00.0: 00000030: 3d 31 37 63 62 2c 73 75 62 73 79 73 74 65 6d 2d  =17cb,subsystem-
[169547.248584] ath11k_pci 0000:05:00.0: 00000040: 64 65 76 69 63 65 3d 33 33 37 34 2c 71 6d 69 2d  device=3374,qmi-
[169547.248585] ath11k_pci 0000:05:00.0: 00000050: 63 68 69 70 2d 69 64 3d 32 2c 71 6d 69 2d 62 6f  chip-id=2,qmi-bo
[169547.248587] ath11k_pci 0000:05:00.0: 00000060: 61 72 64 2d 69 64 3d 32 36 36                    ard-id=266
[169547.248588] ath11k_pci 0000:05:00.0: board name
[169547.248589] ath11k_pci 0000:05:00.0: 00000000: 62 75 73 3d 70 63 69 2c 76 65 6e 64 6f 72 3d 31  bus=pci,vendor=1
[169547.248590] ath11k_pci 0000:05:00.0: 00000010: 37 63 62 2c 64 65 76 69 63 65 3d 31 31 30 33 2c  7cb,device=1103,
[169547.248591] ath11k_pci 0000:05:00.0: 00000020: 73 75 62 73 79 73 74 65 6d 2d 76 65 6e 64 6f 72  subsystem-vendor
[169547.248592] ath11k_pci 0000:05:00.0: 00000030: 3d 31 37 63 62 2c 73 75 62 73 79 73 74 65 6d 2d  =17cb,subsystem-
[169547.248594] ath11k_pci 0000:05:00.0: 00000040: 64 65 76 69 63 65 3d 33 33 37 34 2c 71 6d 69 2d  device=3374,qmi-
[169547.248595] ath11k_pci 0000:05:00.0: 00000050: 63 68 69 70 2d 69 64 3d 31 38 2c 71 6d 69 2d 62  chip-id=18,qmi-b
[169547.248596] ath11k_pci 0000:05:00.0: 00000060: 6f 61 72 64 2d 69 64 3d 32 36 36                 oard-id=266
[169547.248597] ath11k_pci 0000:05:00.0: failed to fetch board data for bus=pci,vendor=17cb,device=1103,subsystem-vendor=17cb,subsystem-device=3374,qmi-chip-id=2,qmi-board-id=262,variant=test from ath11k/WCN6855/hw2.0/board-2.bin
[169547.248476] ath11k_pci 0000:05:00.0: boot using board name 'bus=pci,vendor=17cb,device=1103,subsystem-vendor=17cb,subsystem-device=3374,qmi-chip-id=2,qmi-board-id=262'
[169547.248634] ath11k_pci 0000:05:00.0: boot firmware request ath11k/WCN6855/hw2.0/board-2.bin size 180324
[169547.248636] ath11k_pci 0000:05:00.0: board name
[169547.248637] ath11k_pci 0000:05:00.0: 00000000: 62 75 73 3d 70 63 69 2c 76 65 6e 64 6f 72 3d 31  bus=pci,vendor=1
[169547.248638] ath11k_pci 0000:05:00.0: 00000010: 37 63 62 2c 64 65 76 69 63 65 3d 31 31 30 33 2c  7cb,device=1103,
[169547.248639] ath11k_pci 0000:05:00.0: 00000020: 73 75 62 73 79 73 74 65 6d 2d 76 65 6e 64 6f 72  subsystem-vendor
[169547.248641] ath11k_pci 0000:05:00.0: 00000030: 3d 31 37 63 62 2c 73 75 62 73 79 73 74 65 6d 2d  =17cb,subsystem-
[169547.248642] ath11k_pci 0000:05:00.0: 00000040: 64 65 76 69 63 65 3d 33 33 37 34 2c 71 6d 69 2d  device=3374,qmi-
[169547.248643] ath11k_pci 0000:05:00.0: 00000050: 63 68 69 70 2d 69 64 3d 32 2c 71 6d 69 2d 62 6f  chip-id=2,qmi-bo
[169547.248645] ath11k_pci 0000:05:00.0: 00000060: 61 72 64 2d 69 64 3d 32 36 32                    ard-id=262
[169547.248646] ath11k_pci 0000:05:00.0: boot found match for name 'bus=pci,vendor=17cb,device=1103,subsystem-vendor=17cb,subsystem-device=3374,qmi-chip-id=2,qmi-board-id=262'
[169547.248647] ath11k_pci 0000:05:00.0: boot found board data for 'bus=pci,vendor=17cb,device=1103,subsystem-vendor=17cb,subsystem-device=3374,qmi-chip-id=2,qmi-board-id=262'
[169547.248649] ath11k_pci 0000:05:00.0: using board api 2

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3
Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220315104721.26649-2-quic_wgong@quicinc.com