video: backlight: small workaround to make backlight and display in sync during resume

currently, the backlight wakes up faster than the display, causing there to be ~1 second of delay between both. place a 1 second delay before starting backlight during late resume to slightly improve the situation. also switch to an earlier early suspend level as the backlight also appears to stay on a little bit longer than display when going into suspend. the earlier earlysuspend level will improve this too.

Change-Id: I7e8adf35a98ad49a27169596b473cef66f62da86