sgx_omaplfb: Create omaplfb platform device file to permit device configuration

Change-Id: Ic790a0440d19d862d981a230470523409b25b9a3
Signed-off-by: Tony Lofthouse <a0741364@ti.com>
Signed-off-by: Gustavo Diaz Prado <a0273371@ti.com>

Conflicts:
	arch/arm/plat-omap/Makefile