g3: symlink widevine to system and update blobs

* blobs from hammerhead-lrx21o-factory-01315e08

Change-Id: Ieb116e4927428a7d41fc7d74950380c458354fb5
Enable multiple users

Change-Id: I8e7e5ef5937ad5d51eb511b58635a98562aa6d99

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