vendor: enable control privaapp permissions enforcing

most (all?) treble device will probably come with "enforce" set in vendor props anyway

also add gapps permission as some gapps packages come with not complete or outdated permissions
therefore rename it so they dont overwrite it

Change-Id: I8c0c9c3b83160d9bca89c5a5cde56d8e7faca927

Conflicts:
	config/common.mk
3 files changed