jf-common: add hardware softkey to overlay

Change-Id: I29ded6f1b42eadf31117a75b1ae20a7325575622
jf-common: correct overlay for menu unlock

Change-Id: Ida169fb01707edb6bfc8125758210b6e7c6260a1

Conflicts:
	overlay/frameworks/base/core/res/res/values/config.xml

Change-Id: I0d395f4439f0c3304c7539e161fb2b9242907155