dev: pmi8994: Add display suspend, resume for charging

With SDP charger connected when charging icon is displayed, the display
driver consumes more power and battery does not get enough current to charge.
To overcome the problem add support to suspend the display after 5 seconds of
displaying the charging icon and resume the display when power key is pressed.

Change-Id: I70f602c7062d8014bda200ad458f3971571e39b0
1 file changed