QuickBoot: Charger: add parameter to support QuickBoot mode

If there is unplug event in QuickBoot mode, close display
and go to sleep mode.

Change-Id: Iaa41255b71767e5cce327c4f441de9a870b384f3
(cherry picked from commit b10c52080780119c0f3aa92f14153f4536642e9a)
charger: Underp the backlight

 * Always disable the backlight before blanking, or derp is your life.

Change-Id: I225ff0e881cf781fa3e7054c2f6dfa02a6ab23f9
(cherry picked from commit c8fb65c20f7af90eca0537c874322f7becdd88af)