Add tests cases for checking request_firmware_into_buf api.
API was introduced into kernel with no testing present previously.
Signed-off-by: NScott Branden <scott.branden@broadcom.com>
Acked-by: NLuis Chamberlain <mcgrof@kernel.org>
Acked-by: NShuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20190822184005.901-3-scott.branden@broadcom.comSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>