Add encryption to SecurityPolicy

* Add encrypted-storage to uses-policies
* Add new field to PolicySet
* Add "false" to all constructor callers
* Add unit tests (including fixing some existing unit tests)
* Add new logic to AccountSecurity activity t0 dispatch both password
  and encryption requests.

Bug: 3346641
Change-Id: I54f39bc9b6fbe21c033a05b36b83081e5c78a296
1 file changed