grub/libmpc/gdb: Use GNU_MIRROR in more recipes

(From OE-Core rev: 2f13b063f64c500f144a70d23a343223b5c70907)

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-bsp/grub/grub2.inc

@@ -11,7 +11,7 @@ SECTION = "bootloaders"
 LICENSE = "GPLv3"
 LIC_FILES_CHKSUM = "file://COPYING;md5=d32239bcb673463ab874e80d47fae504"
 
-SRC_URI = "https://ftp.gnu.org/gnu/grub/grub-${PV}.tar.gz \
+SRC_URI = "${GNU_MIRROR}/grub/grub-${PV}.tar.gz \
            file://0001-Disable-mfpmath-sse-as-well-when-SSE-is-disabled.patch \
            file://autogen.sh-exclude-pc.patch \
            file://grub-module-explicitly-keeps-symbole-.module_license.patch \

meta/recipes-devtools/gdb/gdb-8.3.inc

@@ -4,7 +4,7 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=59530bdf33659b29e73d4adb9f9f6552 \
 		    file://COPYING3.LIB;md5=6a6a8e020838b23406c81b19c1d46df6 \
 		    file://COPYING.LIB;md5=9f604d8a4f8e74f4f5140845a21b6674"
 
-SRC_URI = "http://ftp.gnu.org/gnu/gdb/gdb-${PV}.tar.xz \
+SRC_URI = "${GNU_MIRROR}/gdb/gdb-${PV}.tar.xz \
            file://0001-gdbserver-ctrl-c-handling.patch \
            file://0002-make-man-install-relative-to-DESTDIR.patch \
            file://0003-mips-linux-nat-Define-_ABIO32-if-not-defined.patch \

meta/recipes-support/libmpc/libmpc_1.1.0.bb

@@ -3,7 +3,7 @@ require libmpc.inc
 DEPENDS = "gmp mpfr"
 
 LIC_FILES_CHKSUM = "file://COPYING.LESSER;md5=e6a600fd5e1d9cbde2d983680233ad02"
-SRC_URI = "https://ftp.gnu.org/gnu/mpc/mpc-${PV}.tar.gz"
+SRC_URI = "${GNU_MIRROR}/mpc/mpc-${PV}.tar.gz"
 
 SRC_URI[md5sum] = "4125404e41e482ec68282a2e687f6c73"
 SRC_URI[sha256sum] = "6985c538143c1208dcb1ac42cedad6ff52e267b47e5f970183a3e75125b43c2e"