navbar: lil ol tweakaroonie-oonie to disable custom longpress actions on home

Change-Id: I0b950de43a1515391a512a30c072e846ed69352a

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/policy/key/ExtensibleKeyButtonView.java

 Author:    PrimeDirective <activethrasher00@gmail.com>
 Changes to be committed:
	modified:   packages/SystemUI/src/com/android/systemui/statusbar/policy/key/ExtensibleKeyButtonView.java