Update SRC_URI to use GENTOO_MIRROR as SOURCEFORGE_MIRROR continue
to move around the release files.
[YOCTO #8739]
(From OE-Core rev: 780a3739d651a14e1ef9de141e517b77171979d7)
Signed-off-by: Maxin B. John <maxin.john@intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>