W1 OMAP: Fix OMAP LDP boot crash

OMAP LDP boot crash.  This is because w1 subsystem changed the search
interface, so update omap_hdq's search interface to follow the change.

Signed-off-by: Stanley.Miao <stanley.miao@windriver.com>
Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>