MSM KCAL: add lut edit capability

Conflicts:
	arch/arm/mach-msm/msm_kcal_ctrl.c

Change-Id: Icdc713a1557b5681e2aa36d3b6e07014f8e6eaa2
Signed-off-by: Paul Reioux <reioux@gmail.com>
Signed-off-by: flar2 <asegaert@gmail.com>