configs/arm_juno: bump ATF to v1.4

Update to ATF v1.4 (tested on the actual hardware).

Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

configs/arm_juno_defconfig

@@ -12,7 +12,7 @@ BR2_LINUX_KERNEL_INTREE_DTS_NAME="arm/juno arm/juno-r1 arm/juno-r2"
 BR2_TARGET_ARM_TRUSTED_FIRMWARE=y
 BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_GIT=y
 BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_REPO_URL="https://github.com/ARM-software/arm-trusted-firmware.git"
-BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_REPO_VERSION="v1.3"
+BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_REPO_VERSION="v1.4"
 BR2_TARGET_ARM_TRUSTED_FIRMWARE_PLATFORM="juno"
 BR2_TARGET_ARM_TRUSTED_FIRMWARE_FIP=y
 BR2_TARGET_ARM_TRUSTED_FIRMWARE_UBOOT_AS_BL33=y