sepolicy: add device specific-sepolicies

Change-Id: I9f4c68e63a7926781800884853ab3d1b882797f2

Conflicts:
	BoardConfigCommon.mk
	sepolicy/file_contexts

	modified:   BoardConfigCommon.mk
	new file:   sepolicy/device.te
	new file:   sepolicy/file.te
	modified:   sepolicy/file_contexts
	new file:   sepolicy/init_shell.te
	new file:   sepolicy/kernel.te
	new file:   sepolicy/mediaserver.te
	new file:   sepolicy/mm-pp-daemon.te
	new file:   sepolicy/mm-qcamerad.te
	new file:   sepolicy/mpdecision.te
	new file:   sepolicy/nfc.te
	new file:   sepolicy/property.te
	new file:   sepolicy/property_contexts
	new file:   sepolicy/rmt_storage.te
	new file:   sepolicy/sensors.te
	new file:   sepolicy/sysinit.te
	new file:   sepolicy/system_app.te
	new file:   sepolicy/system_server.te
	new file:   sepolicy/tee.te
	new file:   sepolicy/thermal-engine.te
	new file:   sepolicy/time_daemon.te
	new file:   sepolicy/ueventd.te
	new file:   sepolicy/vold.te
	new file:   sepolicy/wcnss_service.te
	new file:   sepolicy/wpa.te
g3: split mixer_paths for bcm/wcnss

Change-Id: Ic29f8420297f55091736d04cb4dece30ac6cbe4c