The 'ready' condition was incorrectly evaluated which sometimes lead to
failures loading the second-stage firmware on 8686 devices.

(This was introduced in "libertas: consolidate SDIO firmware wait code".
-- JWL)
Signed-off-by: NDan Williams <dcbw@redhat.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>