boot/arm-trusted-firmware: update condition for custom tarball management

This patch updates the condition to handle custom tarballs as specified by
the configuration. This change is made to have cleaner condition and for
consistency.

Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

boot/arm-trusted-firmware/arm-trusted-firmware.mk

@@ -6,7 +6,7 @@
 
 ARM_TRUSTED_FIRMWARE_VERSION = $(call qstrip,$(BR2_TARGET_ARM_TRUSTED_FIRMWARE_VERSION))
 
-ifeq ($(ARM_TRUSTED_FIRMWARE_VERSION),custom)
+ifeq ($(BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_TARBALL),y)
 # Handle custom ATF tarballs as specified by the configuration
 ARM_TRUSTED_FIRMWARE_TARBALL = $(call qstrip,$(BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_TARBALL_LOCATION))
 ARM_TRUSTED_FIRMWARE_SITE = $(patsubst %/,%,$(dir $(ARM_TRUSTED_FIRMWARE_TARBALL)))
@@ -201,7 +201,7 @@ endef
 # Configuration check
 ifeq ($(BR2_TARGET_ARM_TRUSTED_FIRMWARE)$(BR_BUILDING),yy)
 
-ifeq ($(ARM_TRUSTED_FIRMWARE_VERSION),custom)
+ifeq ($(BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_TARBALL),y)
 ifeq ($(call qstrip,$(BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_TARBALL_LOCATION)),)
 $(error No tarball location specified. Please check BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_TARBALL_LOCATION)
 endif