SystemUI: powerbutton in nav

Change-Id: Ifb3feb62b85b87459980d5365df74ec9c5ceb487

commit backup

Change-Id: I4e1781d82f388a74aac762017f35b4e03eaeca1e

SystemUI: power in navbar

Change-Id: I83814686c658ee76f4ee8c6e5ba00a0e1d5765b5