gmp: use http instead of ftp download

patches/openwrt/0011-BB-gmp-use-http-instead-of-ftp-download-18805.patch

+From: Matthias Schiffer <mschiffer@universe-factory.net>
+Date: Mon, 26 Jan 2015 03:53:05 +0100
+Subject: BB: gmp: use http instead of ftp download (#18805)
+
+Signed-off-by: Felix Fietkau <nbd@openwrt.org>
+
+Backport of r44082
+
+diff --git a/package/libs/gmp/Makefile b/package/libs/gmp/Makefile
+index f5839b7..4826e4a 100644
+--- a/package/libs/gmp/Makefile
++++ b/package/libs/gmp/Makefile
+@@ -13,7 +13,7 @@ PKG_REVISION:=a
+ PKG_RELEASE:=1
+ 
+ PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)$(PKG_REVISION).tar.xz
+-PKG_SOURCE_URL:=ftp://ftp.gmplib.org/pub/$(PKG_NAME)/
++PKG_SOURCE_URL:=http://gmplib.org/download/gmp/
+ PKG_MD5SUM:=1e6da4e434553d2811437aa42c7f7c76
+ 
+ PKG_BUILD_PARALLEL:=1