* Commonize BCM FM radio flag
* Add common system properties
* Add WiFi flags
* Add common NFC flags
* Add common permissions
* Build packages required for FM radio
* Add common overlay
* Add configs (audio, bluetooth, GPS, input, IRQ, media etc.)
* Add separate overlays and configs for radio

Change-Id: I92980c94a05f6c482137d92fd0cb1f9cd28cd937