HID: magicmouse: Add input_register callback.

The magicmouse driver needs to setup the input mapping
after reports are parsed but before device is registered.

Change-Id: Ic3a0ff4fc056f5d374bb7ea1bd831a175c690b0b
Signed-off-by: Jaikumar Ganesh <jaikumarg@android.com>
1 file changed