ARC: HAPS: cleanup defconfigs from unused ETH drivers

We have multiple vendors ethernet drivers enabled in haps_hs and
haps_hs_smp defconfig. The only one we possibly require is
VIRTIO_NET. So disable unused ones via disabling entire
CONFIG_ETHERNET which controls all vendor-specific ethernet
drivers.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>

arch/arc/configs/haps_hs_defconfig

@@ -36,16 +36,7 @@ CONFIG_DEVTMPFS_MOUNT=y
 CONFIG_VIRTIO_BLK=y
 CONFIG_NETDEVICES=y
 CONFIG_VIRTIO_NET=y
-# CONFIG_NET_VENDOR_ARC is not set
-# CONFIG_NET_VENDOR_BROADCOM is not set
-# CONFIG_NET_VENDOR_INTEL is not set
-# CONFIG_NET_VENDOR_MARVELL is not set
-# CONFIG_NET_VENDOR_MICREL is not set
-# CONFIG_NET_VENDOR_NATSEMI is not set
-# CONFIG_NET_VENDOR_SEEQ is not set
-# CONFIG_NET_VENDOR_STMICRO is not set
-# CONFIG_NET_VENDOR_VIA is not set
-# CONFIG_NET_VENDOR_WIZNET is not set
+# CONFIG_ETHERNET is not set
 # CONFIG_WLAN is not set
 CONFIG_INPUT_EVDEV=y
 # CONFIG_INPUT_KEYBOARD is not set

arch/arc/configs/haps_hs_smp_defconfig

@@ -37,16 +37,7 @@ CONFIG_DEVTMPFS=y
 # CONFIG_PREVENT_FIRMWARE_BUILD is not set
 # CONFIG_BLK_DEV is not set
 CONFIG_NETDEVICES=y
-# CONFIG_NET_VENDOR_ARC is not set
-# CONFIG_NET_VENDOR_BROADCOM is not set
-# CONFIG_NET_VENDOR_INTEL is not set
-# CONFIG_NET_VENDOR_MARVELL is not set
-# CONFIG_NET_VENDOR_MICREL is not set
-# CONFIG_NET_VENDOR_NATSEMI is not set
-# CONFIG_NET_VENDOR_SEEQ is not set
-# CONFIG_NET_VENDOR_STMICRO is not set
-# CONFIG_NET_VENDOR_VIA is not set
-# CONFIG_NET_VENDOR_WIZNET is not set
+# CONFIG_ETHERNET is not set
 # CONFIG_WLAN is not set
 CONFIG_INPUT_EVDEV=y
 # CONFIG_INPUT_KEYBOARD is not set