msm_fb: display: Reapply LUT calibration when re-enabling MDP

CONFIG_UPDATE_LCDC_LUT values were reset when MDP was shut down.
Reapply them when coming back up to preserve the calibration
This patch from  rmcc (Ricardo Cerqueira) is needed here to fix
a bug with autobrightness enabled panel randomly remains dimmed
after unlock...until lock and unlock again