kgsl: OC 2D core to 228.571Mhz
kgsl: add new 266.667Mhz 2D clock
kgsl: 2D: change lower scaling step back to default
kgsl: increase 2D Fmax to fit new 2D maxclock
kgsl: 2D: add new highest scaling step

Conflicts:

	arch/arm/mach-msm/devices-msm8x60.c