Reduce the RAM used by the GPU as Frame Buffer.
1280x720x32bitsx3buffers (tripple buffering) equals to less than 11MBytes.
So, some more MBs of RAM are back to the user.
My purple tint fix.
Users report 80-100% purple tint (at low brightness) cure. Reports of increase in max brightness also.

Conflicts:
	arch/arm/mach-omap2/board-tuna-display.c
Disabled RAM console to reclaim some RAM

Conflicts:
	arch/arm/configs/tuna_defconfig