video: grvga: Use module_platform_driver
video: grvga: Use module_platform_driver

module_platform_driver removes some boilerplate code and makes
it simple.

Signed-off-by: Sachin Kamat <1c3b1584a6008857f36c03c58f657c0fc16fc09e@linaro.org>
Cc: Kristoffer Glembo <a1a57ffe6f4b662cb663643282042af377d0ccb1@gaisler.com>
Signed-off-by: Tomi Valkeinen <e1ca4dbb8be1acaf20734fecd2da10ed1d46a9bb@ti.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs