Add permission whitelist for EmergencyInfo app.

This is the "Emergency Info" screen available from the lock screen.
It requires the CALL_PRIVILEGED permission in order for it to be able to
place emergency calls.  This can occur if a user adds an emergency number
to their emergency contacts.

Test: make checkbuild
Bug: 76086838
Change-Id: I76e8318c5c05bbbbdf02d2c6951f742c3bd67ea6