overclocking: add another class "ULTRA" for OC in the 2.2~2.3 GHz range

Signed-off-by: Paul Reioux <reioux@gmail.com>
GPU Overclock: GPU overclocking to 487.5 MHz

Signed-off-by: Paul Reioux <reioux@gmail.com>
GPU Overclocking: add 450 MHz option

Signed-off-by: Paul Reioux <reioux@gmail.com>
drivers/video/msm: restore update_lcdc_lut capabilities for MDP devices

Signed-off-by: Paul Reioux <reioux@gmail.com>