glibc: switch from git to https

This is needed for working behind a http proxy.

Signed-off-by: Johann Neuhauser <jneuhauser@dh-electronics.de>

toolchain/glibc/common.mk

@@ -13,7 +13,7 @@ PKG_SOURCE_PROTO:=git
 PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
 PKG_SOURCE_VERSION:=d300041c533a3d837c9f37a099bcc95466860e98
 PKG_MIRROR_HASH:=31e90926a1d3093355aa85c04c68b3d109c3dc3d9f80afe50505e864b32ac784
-PKG_SOURCE_URL:=git://sourceware.org/git/glibc.git
+PKG_SOURCE_URL:=https://sourceware.org/git/glibc.git
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION).tar.xz
 
 HOST_BUILD_DIR:=$(BUILD_DIR_TOOLCHAIN)/$(PKG_SOURCE_SUBDIR)