Controls UI - Support detail panels

Allow apps to specify whether to show full screen or within detail
panels. Default camers and thermostats to use the panel by default
when the following flag is enabled.

Enable by:
adb shell settings put secure systemui.controls_use_panel 1

Change offset from the top in Px:
adb shell settings put secure systemui.controls_panel_top_offset XXX

Bug: 152528130
Test: manual, use camera, thermostat devices

Change-Id: Ia1b12afcf4de2a0bcf7957e6425b282b1e220f46