firmware: hdmi: Don't use refer to stream for stereo PCM
See: http://forum.stmlabs.com/showthread.php?tid=10431

firmware: Add flags to dispmanx_snapshot to capture video layer, enable packed data and swap red/blue
See: https://github.com/xbmc/xbmc/pull/3210

kernel: Add new config options: CPU_FREQ_STAT_DETAILS, DUMMY, QFMT_V1, QFMT_V2, DLM
See: https://github.com/raspberrypi/linux/commit/cbd6672e7e1b2dc5026f5dc7929a13a9a68f2a62