PATA part of all current JMB controllers behave the same way and
JMicron confirms that all future ones will stay compatible.  Drop
device matching and match only vendor and class.
Signed-off-by: NTejun Heo <htejun@gmail.com>
Cc: Ethan Hsiao <ethanhsiao@jmicron.com>
Cc: Justin Tsai <justin@jmicron.com>
Signed-off-by: NJeff Garzik <jeff@garzik.org>