toolchain/toolchain-external: add aarch64 as a hostarch for arm tools

The gcc toolchain is also released for an aarch64 host target and allow
that configuration to be used as part of the configuration. Tested on
on a aarch64 linux docker.

Signed-off-by: Charles Hardin <ckhardin@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

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

@@ -8,7 +8,7 @@ config BR2_TOOLCHAIN_EXTERNAL_ARM_ARM
 	depends on BR2_arm
 	depends on BR2_ARM_CPU_ARMV7A || BR2_ARM_CPU_ARMV8A
 	depends on BR2_ARM_CPU_HAS_NEON
-	depends on BR2_HOSTARCH = "x86_64"
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "aarch64"
 	depends on BR2_ARM_EABIHF
 	depends on !BR2_STATIC_LIBS
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC

toolchain/toolchain-external/toolchain-external-arm-arm/toolchain-external-arm-arm.hash

@@ -1,4 +1,7 @@
 # From https://developer.arm.com/-/media/Files/downloads/gnu-a/10.3-2021.07/binrel/gcc-arm-10.3-2021.07-x86_64-arm-none-linux-gnueabihf.tar.xz.asc
 md5  87ec580b290df2febc7c476f59484635  gcc-arm-10.3-2021.07-x86_64-arm-none-linux-gnueabihf.tar.xz
+# From https://developer.arm.com/-/media/Files/downloads/gnu-a/10.3-2021.07/binrel/gcc-arm-10.3-2021.07-aarch64-arm-none-linux-gnueabihf.tar.xz.asc
+md5  0f1c5c90f5c62e1d1066f75fb3e51e21  gcc-arm-10.3-2021.07-aarch64-arm-none-linux-gnueabihf.tar.xz
 # locally calculated
 sha256  aa074fa8371a4f73fecbd16bd62c8b1945f23289e26414794f130d6ccdf8e39c  gcc-arm-10.3-2021.07-x86_64-arm-none-linux-gnueabihf.tar.xz
+sha256  fccd7af76988da2b077f939eb2a78baa9935810918d2bf3f837bc74f52efa825  gcc-arm-10.3-2021.07-aarch64-arm-none-linux-gnueabihf.tar.xz

toolchain/toolchain-external/toolchain-external-arm-arm/toolchain-external-arm-arm.mk

@@ -7,6 +7,6 @@
 TOOLCHAIN_EXTERNAL_ARM_ARM_VERSION = 2021.07
 TOOLCHAIN_EXTERNAL_ARM_ARM_SITE = https://developer.arm.com/-/media/Files/downloads/gnu-a/10.3-$(TOOLCHAIN_EXTERNAL_ARM_ARM_VERSION)/binrel
 
-TOOLCHAIN_EXTERNAL_ARM_ARM_SOURCE = gcc-arm-10.3-$(TOOLCHAIN_EXTERNAL_ARM_ARM_VERSION)-x86_64-arm-none-linux-gnueabihf.tar.xz
+TOOLCHAIN_EXTERNAL_ARM_ARM_SOURCE = gcc-arm-10.3-$(TOOLCHAIN_EXTERNAL_ARM_ARM_VERSION)-$(HOSTARCH)-arm-none-linux-gnueabihf.tar.xz
 
 $(eval $(toolchain-external-package))