Fix maxim max77686 driver

With driver-y going away, the current driver code didn't get
compiled in with upstream.

Change-Id: I9bff45a35c995888a482bdc22a1573f6bfb88211
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2027
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
1 file changed