Allows to launch only authenticator owned activities

- 3rd party developers can define himself-authenticator
  and use the accountPreferences attribute to load the
  predefined preference UI.
- If a developer defines an action intent to launch the
  other activity in xml and it would return true due
  to the true exported attribute and no permission.
- To avoid launching arbitrary activity. Here allows
  to launch only authenticator owned activities.

Bug: 150946634
Test: make RunSettingsRoboTests -j
Test: PoC app
Change-Id: I5ce1a0b3838db7b3fbe48c6ea23d5f093d625cdb
Merged-In: I5ce1a0b3838db7b3fbe48c6ea23d5f093d625cdb
(cherry picked from commit d6d8f988449617d757a5d7439314198d10d6ee78)
(cherry picked from commit 4b6e82fd5d2204cd37eae0d7c7b08f19b96baffe)
1 file changed