[Buildroot] [PATCH for-master] boot/arm-trusted-firmware: ignore licencing check for user defined official version

[Romain Naour]

The commit [1] "licensing info is only valid for v1.4" fixed the legal-info
issues when a custom ATF tarball or a version from git is used.
But we need to ignore licencing for a used defined official ATF version.

Althougt the ATF version are licensed under BSD-3-Clause, the license
file can be updated between version (for example between v1.4 and v2.0).

Ignore the licencing check if the user provide a custom official version.

[1] d1a61703f728340ec894c367398d2a3a394a3360

Signed-off-by: Romain Naour <romain.naour at gmail.com>
Cc: Yann E. MORIN <yann.morin.1998 at free.fr>
---
This can be reproduced by loading qemu_arm_vexpress_tz_defconfig followed by
make legal-info.
---
 boot/arm-trusted-firmware/arm-trusted-firmware.mk | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/boot/arm-trusted-firmware/arm-trusted-firmware.mk b/boot/arm-trusted-firmware/arm-trusted-firmware.mk
index 2e8a7c1a23..9c06ea7722 100644
--- a/boot/arm-trusted-firmware/arm-trusted-firmware.mk
+++ b/boot/arm-trusted-firmware/arm-trusted-firmware.mk
@@ -19,9 +19,11 @@ else
 ARM_TRUSTED_FIRMWARE_SITE = $(call github,ARM-software,arm-trusted-firmware,$(ARM_TRUSTED_FIRMWARE_VERSION))
 # The licensing of custom or from-git versions is unknown.
 # This is valid only for the official v1.4.
+ifeq ($(BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_VERSION),)
 ARM_TRUSTED_FIRMWARE_LICENSE = BSD-3-Clause
 ARM_TRUSTED_FIRMWARE_LICENSE_FILES = license.rst
 endif
+endif
 
 ifeq ($(BR2_TARGET_ARM_TRUSTED_FIRMWARE)$(BR2_TARGET_ARM_TRUSTED_FIRMWARE_LATEST_VERSION),y)
 BR_NO_CHECK_HASH_FOR += $(ARM_TRUSTED_FIRMWARE_SOURCE)
-- 
2.25.4