Both ftp and SF are official code sources, but ftp is less finicky
for upstream version checks.
(From OE-Core rev: c6475e9c9e0ed97c2705f66f15e8a6440274565d)
Signed-off-by: Alexander Kanavin <alexander.kanavin@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>