msm8226-common: use dtbToolCM

Change-Id: I1f6857ae4c36e8f32c11a54fc891eeac8cfb2ec8
msm8226-common: overlay: hide battery led settings

Charging LED doesn't work so there shoudn't be options either.
Overlay overlays from motorola/qcom-common.

Change-Id: I126f6226f3ef18a133da11152e5535d4387c045c
Allow flip cover to sleep screen when shut.

Current behavior allows the screen to turn on when the flip
is opened but does not turn off the screen when closed.

Change-Id: I63fbc7972f61b80707fbe5df186dab6bea0137e3