geofence: Low power geofence HW implementation

HW implemntation overwrites the SW implementation

Change-Id: I8762b0b2e3c5001622f9c8aa2a845ee64104faa3
services: make sure to recycle set args

2 minor leaks found here in the screen magnification service

Change-Id: I1118bb8ca26d84633444241b2d5be6979cb39922
AudioService reconciliation

Change-Id: Ie20af397f60e19466fdafb87f86be972cfe639a7
SystemUI: Fix missing context var

Change-Id: I083f85fdfec2bde88e6d8e0366d94e86eaea20cd
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>