Satellite: launch PointingUI with FLAG_ACTIVITY_NO_USER_ACTION

Set Intent flag FLAG_ACTIVITY_NO_USER_ACTION, to launch the PointingUI. This is required since the PUI is launched without any user actions.

Flag: EXEMPT trivial change
Bug: 415176680
Test: Manual stress test (vzw dfit) on real device.
Change-Id: I85180b330ff9ac6a7fb9c689e2cabcb74c80ddb2