toolchain/external: bump Linaro AArch64 to 2016.05 for i686 hosts

Tested with Qemu 2.6.1 and qemu_aarch64_virt_defconfig and with
HOSTARCH set to x86 in the Buildroot main Makefile.

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

toolchain/toolchain-external/Config.in

@@ -483,28 +483,10 @@ config BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX
 	  Toolchain for the Blackfin architecture, from
 	  http://blackfin.uclinux.org.
 
-# See note about Linaro ARM/ARMEB toolchains, above.
-config BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64
-	bool "Linaro AArch64 14.09"
-	depends on BR2_aarch64
-	depends on BR2_HOSTARCH = "x86"
-	depends on !BR2_STATIC_LIBS
-	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
-	select BR2_TOOLCHAIN_HAS_SSP
-	select BR2_INSTALL_LIBSTDCPP
-	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_7
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
-	select BR2_TOOLCHAIN_HAS_FORTRAN
-	help
-	  Toolchain for the AArch64 architecture, from
-	  http://www.linaro.org/engineering/armv8/
-
-# See note about Linaro ARM/ARMEB toolchains, above.
 config BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64
 	bool "Linaro AArch64 2016.05"
 	depends on BR2_aarch64
-	depends on BR2_HOSTARCH = "x86_64"
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
 	depends on !BR2_STATIC_LIBS
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	select BR2_TOOLCHAIN_HAS_SSP

toolchain/toolchain-external/toolchain-external.hash

@@ -39,8 +39,7 @@ sha256 f1421c580ce977226f4fefc9c409b3b423260cc65a6e9dc6da88bb3478a521a0  gcc-lin
 sha256 987941c9fffdf56ffcbe90e8984673c16648c477b537fcf43add22fa62f161cd  gcc-linaro-5.3.1-2016.05-x86_64_arm-linux-gnueabihf.tar.xz
 sha256 f6e9c0d3320760fe8f89e9ec3acdd7b4da7eff889c094b4a2acc286fd46f334f  gcc-linaro-5.3.1-2016.05-i686_armeb-linux-gnueabihf.tar.xz
 sha256 6cf41c8944be56279cc14992aa075174b7a4c5938502536266eaaeef048f9440  gcc-linaro-5.3.1-2016.05-x86_64_armeb-linux-gnueabihf.tar.xz
-sha256 3954f496ab01de67241109e82abfaa9b7625fdab4f05e79e7902e9814a07b832  gcc-linaro-aarch64-linux-gnu-4.9-2014.09_linux.tar.xz
-sha256 a7b8f842fdc9d9be22ca4e0c999429780fc6f16ea798b032421b5ec0cfa53b3e  gcc-linaro-aarch64-linux-gnu-4.9-2014.09_src.tar.bz2
+sha256 d43227248f282a652da42322fcf4abfd3021f2a2f62e0cf6e242d82f55966ba9  gcc-linaro-5.3.1-2016.05-i686_aarch64-linux-gnu.tar.xz
 sha256 1941dcf6229d6706bcb89b7976d5d43d170efdd17c27d5fe1738e7ecf22adc37  gcc-linaro-5.3.1-2016.05-x86_64_aarch64-linux-gnu.tar.xz
 
 # Codescape toolchains from Imagination Technologies

toolchain/toolchain-external/toolchain-external.mk

@@ -376,13 +376,10 @@ TOOLCHAIN_EXTERNAL_EXTRA_DOWNLOADS = blackfin-toolchain-uclibc-full-2014R1-RC2.i
 TOOLCHAIN_EXTERNAL_STRIP_COMPONENTS = 3
 TOOLCHAIN_EXTERNAL_POST_EXTRACT_HOOKS += TOOLCHAIN_EXTERNAL_BLACKFIN_UCLIBC_EXTRA_EXTRACT
 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64),y)
+TOOLCHAIN_EXTERNAL_SITE = https://releases.linaro.org/components/toolchain/binaries/5.3-2016.05/aarch64-linux-gnu
 ifeq ($(HOSTARCH),x86)
-TOOLCHAIN_EXTERNAL_SITE = https://releases.linaro.org/14.09/components/toolchain/binaries
-TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-aarch64-linux-gnu-4.9-2014.09_linux.tar.xz
-TOOLCHAIN_EXTERNAL_ACTUAL_SOURCE_TARBALL = gcc-linaro-aarch64-linux-gnu-4.9-2014.09_src.tar.bz2
-TOOLCHAIN_EXTERNAL_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_EXTERNAL_LINARO_SYMLINK
+TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-5.3.1-2016.05-i686_aarch64-linux-gnu.tar.xz
 else
-TOOLCHAIN_EXTERNAL_SITE = https://releases.linaro.org/components/toolchain/binaries/5.3-2016.05/aarch64-linux-gnu
 TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-5.3.1-2016.05-x86_64_aarch64-linux-gnu.tar.xz
 endif
 else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64),y)