Fix Package manager service

Change-Id: I9fa8776a49c89335b2e8368138230e369b81aa49
Revert "Revert "Block application install from unknown sources through adb""

This reverts commit 82b0dd815c827ff68f201d752cdd5c1d08fb39a6.

Change-Id: I4ba932d9e71157235721336040582f5280c0c131