Revert "Hide QS Panel Toggle [1/2]"

This reverts commit 0be296edcd09bb5459c2d7de8962cd3cf715eb43.

Conflicts:
	core/java/android/provider/Settings.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java

Change-Id: I3a1720bd6e131230bb85514e4239ad2b7ee17170