Lockscreens/NavRing: Update parameters of getAssistIntent

* Parameters changed in 4.3

Change-Id: I0921593235c2f571545b7c055e00ae9b18718f2b
Signed-off-by: Brandon McAnsh <brandon.mcansh@gmail.com>
RC: Add GET_TOP_ACTIVITY_INFO permission

Change-Id: Ifaa8902612470bc9820ee67ca9aa996bc7b98caf
Signed-off-by: Brandon McAnsh <brandon.mcansh@gmail.com>