kernel: bcm2708_fb: use IRQ for DMA copies
See: https://github.com/raspberrypi/linux/pull/479

firmware: OV5647: Fix for opening the driver twice killing the first instance
See: http://www.raspberrypi.org/phpBB3/viewtopic.php?f=43&t=65215

firmware: Add second call to pvt_calibration to avoid occasional hang on start

firmware: Add config parameter to switch to timestamp fifo mode on non-monotonic timestamps
See: http://forum.stmlabs.com/showthread.php?tid=12535

firmware: Add config option to treat dts as whole frames.
See: http://forum.xbmc.org/showthread.php?tid=180161