Ask for PIN when granting permissions in front of

lock screen

When the user makes any permanent decision in front of the lock screen,
the system should as her/him for authentification. Permanent decisions
are granting of permissions and permanently denying permissions.

As the autentification flow unlocks the device the system asks only once
per permission-request session.

Test: - Revoked all permissions from camer
      - Set lock screen PIN
      - Opened camera app -> Camera app asks for permissions
      - Locked screen
      - Granted permission from in front of lock screen
Bug: 68777217, 65337954
Change-Id: I8358f1eba436786b25b2c2b0c12ac7dcfd334fec