toolchain-external: disallow sourcery codebench ARM toolchain for ARMv8 cores

This toolchain uses GCC 4.8.x, which doesn't support the ARMv8 cores.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

toolchain/toolchain-external/toolchain-external-codesourcery-arm/Config.in

@@ -4,7 +4,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM
 	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	depends on BR2_ARM_EABI
 	# Unsupported ARM cores
-	depends on !BR2_cortex_a12 && !BR2_cortex_a17
+	depends on !BR2_cortex_a12 && !BR2_cortex_a17 && !BR2_ARM_CPU_ARMV8
 	depends on !BR2_STATIC_LIBS
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_SSP