msm: kgsl: update for 4.2
adding support caf-4.2 display lib #2
msm: fix header: display: non-blocking for overlay update

Display commit will work as overlay commit when
MDP_DISPLAY_COMMIT_OVERLAY flag is set. It will be
non-blocking if wait_for_finish is false.
msm: display: cleanup: mdp4 lcdc pipe clean, vsync
leds: as3676 standart: expose ALS values
add: header for hdmi
iommu: needed for mako driver
fuji: disable hardware ambient light