
Add a new connector property to allow DC dimming feature to set dimming backlight LUT. This change also adds a connector event for client to register for backlight info needed for digital dimming feature, including OS brightness, OS brightness_max, panel_backlight, panel_backlight_max, and scale factors from ABA and LTM features. Change-Id: I78f713fb2b965ca24effd973b4dfa9ff07a852f8 Signed-off-by: Ping Li <pingli@codeaurora.org>