Use module_platform_driver() to remove the boilerplate code.

Also, change the probe and remove functions to __devinit/__devexit.
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>