Disable Immersive Messages [2/2]

Based off Xposed module by GermainZ

https://github.com/GermainZ/ImmersiveModeDontPanic

Change-Id: I4835cac08a9e525ec15aa4d1ee84329970ec6a72

Conflicts:
	core/java/android/provider/Settings.java

Conflicts:
	core/java/android/provider/Settings.java