Marvell-armhf: Disable uefi firmware for marvell

As per the base configuration from the upstreamed linux community
linux-4.19.118/arch/arm/configs/mvebu_v7_defconfig, the following
configuration changes are made

 - Disable EFI as it is not supported in marvell armada soc
 - Disable uefi based kernel module load security

Signed-off-by: Antony Rheneus <[email protected]>

Author: antony-rheneus

patch/kconfig-exclusions

@@ -34,3 +34,7 @@ CONFIG_VORTEX
 CONFIG_NTP_PPS
 CONFIG_SENSORS_MAX6620
 CONFIG_SND_LX6464ES
+CONFIG_EFI
+CONFIG_LOCK_DOWN_KERNEL
+CONFIG_SECONDARY_TRUSTED_KEYRING
+CONFIG_SYSTEM_BLACKLIST_KEYRING