toolchain/toolchain-external/toolchain-external-arm-arm: fix BR2_ARCH_NEEDS_GCC_AT_LEAST_X guard

BR2_ARCH_NEEDS_GCC_AT_LEAST_X guards has been introduced by [1] to
prevent selecting an external toolchain that did not support the GCC
arch tuning the user had selected.

But it was not updated while updating to version 13.2-rel1.

Fixes: 0dd599d171df7852ae801173c8212976e50b09e1

[1] eed1670d8a6f0899f5fdfc26bd6d1609ebc19c7a

Cc: Antoine Coutant <antoine.coutant@smile.fr>
Signed-off-by: Romain Naour <romain.naour@smile.fr>
Signed-off-by: Julien Olivain <ju.o@free.fr>

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

@@ -9,7 +9,7 @@ config BR2_TOOLCHAIN_EXTERNAL_ARM_ARM
 	depends on BR2_ARM_CPU_HAS_NEON
 	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "aarch64"
 	depends on BR2_ARM_EABIHF
-	depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_13
+	depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_14
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_SSP
 	select BR2_INSTALL_LIBSTDCPP