toolchain-external: CodeSourcery NIOSII 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>

toolchain/toolchain-external/toolchain-external-codesourcery-niosII/toolchain-external-codesourcery-niosII.mk

@@ -6,7 +6,7 @@
 
 TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII_VERSION = 2016.11-32
 
-TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII_SITE = http://sourcery.mentor.com/public/gnu_toolchain/$(TOOLCHAIN_EXTERNAL_PREFIX)
+TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII_SITE = https://sourcery.mentor.com/public/gnu_toolchain/$(TOOLCHAIN_EXTERNAL_PREFIX)
 TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII_SOURCE = sourceryg++-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII_VERSION)-$(TOOLCHAIN_EXTERNAL_PREFIX)-i686-pc-linux-gnu.tar.bz2
 TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII_ACTUAL_SOURCE_TARBALL = sourceryg++-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII_VERSION)-$(TOOLCHAIN_EXTERNAL_PREFIX).src.tar.bz2