arm64 defconfig: enable MPT3 SAS and BNX2X drivers

ThunderX2 server requires both to provide storage and network.

05:00.0 Ethernet controller [0200]: Broadcom Limited BCM57840 NetXtreme II 10 Gigabit Ethernet [14e4:16a1] (rev 11)
05:00.1 Ethernet controller [0200]: Broadcom Limited BCM57840 NetXtreme II 10 Gigabit Ethernet [14e4:16a1] (rev 11)
8d:00.0 Serial Attached SCSI controller [0107]: LSI Logic / Symbios Logic SAS3224 PCI-Express Fusion-MPT SAS-3 [1000:00c4] (rev 01)
Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>

arch/arm64/configs/defconfig

@@ -214,6 +214,7 @@ CONFIG_BLK_DEV_SD=y
 CONFIG_SCSI_SAS_ATA=y
 CONFIG_SCSI_HISI_SAS=y
 CONFIG_SCSI_HISI_SAS_PCI=y
+CONFIG_SCSI_MPT3SAS=m
 CONFIG_SCSI_UFSHCD=y
 CONFIG_SCSI_UFSHCD_PLATFORM=y
 CONFIG_SCSI_UFS_QCOM=m
@@ -238,6 +239,7 @@ CONFIG_VIRTIO_NET=y
 CONFIG_AMD_XGBE=y
 CONFIG_NET_XGENE=y
 CONFIG_ATL1C=m
+CONFIG_BNX2X=m
 CONFIG_MACB=y
 CONFIG_THUNDER_NIC_PF=y
 CONFIG_FEC=y