Add a new signature-level READ_ACTIVE_EMERGENCY_SESSION permission in CTS

Bug: 135204580
Test: Treehugger
Change-Id: I7e67646c5de2a90d20ddc1412c3276d45015695c
Merged-In: I7e67646c5de2a90d20ddc1412c3276d45015695c
(cherry picked from commit 451ff6168b147af195d11cf766c241ef47affd40)
1 file changed