A file:// url should use "clone -l" to greatly speed
up the clone in the case of a kernel when it is local.
(Bitbake rev: 2bab2cc3ffe67ee2a308074a6e4c2c7be5636d2f)
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>