envsetup: dopush: Correct paths

* In order to automatically restart the system when pushing SystemUI, the
  path must actually be correct
* Since android 10 it's in system/*product*/priv-app and 11 will move
  it again, so just match it anywhere
* Make framework also location independent

Change-Id: I4a9eb1edbbb21ab8abe17815c606921f7a538b7f