firmware: Update to "20160512" snapshot
firmware: Update to "20160512" snapshot

Signed-off-by: Khem Raj <729d64b6f67515e258459a5f6d20ec88b2caf8df@gmail.com>

toolmmy/meta-raspberrypi,VCTLabs/meta-raspberrypi,kraj/meta-raspberrypi,toolmmy/meta-raspberrypi,schnitzeltony/meta-raspberrypi,agherzan/meta-raspberrypi,LocutusOfBorg/meta-raspberrypi,LocutusOfBorg/meta-raspberrypi,agherzan/meta-raspberrypi,kraj/meta-raspberrypi,schnitzeltony/meta-raspi-light,agherzan/meta-raspberrypi,LocutusOfBorg/meta-raspberrypi,d21d3q/meta-raspberrypi,schnitzeltony/meta-raspi-light,d21d3q/meta-raspberrypi,toolmmy/meta-raspberrypi,VCTLabs/meta-raspberrypi,kraj/meta-raspberrypi,VCTLabs/meta-raspberrypi,leon-anavi/meta-raspberrypi,LocutusOfBorg/meta-raspberrypi,agherzan/meta-raspberrypi,leon-anavi/meta-raspberrypi,d21d3q/meta-raspberrypi,toolmmy/meta-raspberrypi,schnitzeltony/meta-raspberrypi,schnitzeltony/meta-raspberrypi,d21d3q/meta-raspberrypi,leon-anavi/meta-raspberrypi,VCTLabs/meta-raspberrypi,agherzan/meta-raspberrypi,agherzan/meta-raspberrypi