toolchain-external: CodeSourcery aarch64 update upstream URL

The current URL returns error 403: Forbidden, so switch to https.

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
(cherry picked from commit 3e069f41bfd62cbb034ccd7f531b976564bda121)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

toolchain/toolchain-external/toolchain-external-codesourcery-aarch64/toolchain-external-codesourcery-aarch64.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_SITE = http://sourcery.mentor.com/public/gnu_toolchain/$(TOOLCHAIN_EXTERNAL_PREFIX)
+TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_SITE = https://sourcery.mentor.com/public/gnu_toolchain/$(TOOLCHAIN_EXTERNAL_PREFIX)
 TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_VERSION = 2014.11-95
 TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_SOURCE = aarch64-amd-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_VERSION)-$(TOOLCHAIN_EXTERNAL_PREFIX)-i686-pc-linux-gnu.tar.bz2
 TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_ACTUAL_SOURCE_TARBALL = aarch64-amd-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_VERSION)-$(TOOLCHAIN_EXTERNAL_PREFIX).src.tar.bz2