package/gcc-bare-metal: align site to gcc package

Align gcc-bare-metal site location to be the same as gcc site location.

Signed-off-by: Neal Frager <neal.frager@amd.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/gcc-bare-metal/gcc-bare-metal.mk

@@ -5,7 +5,7 @@
 ################################################################################
 
 GCC_BARE_METAL_VERSION = 14.2.0
-GCC_BARE_METAL_SITE = https://ftp.gnu.org/gnu/gcc/gcc-$(GCC_BARE_METAL_VERSION)
+GCC_BARE_METAL_SITE = $(BR2_GNU_MIRROR)/gcc/gcc-$(GCC_BARE_METAL_VERSION)
 GCC_BARE_METAL_SOURCE = gcc-$(GCC_BARE_METAL_VERSION).tar.xz
 
 GCC_BARE_METAL_LICENSE = GPL-2.0, GPL-3.0, LGPL-2.1, LGPL-3.0