XBMC: Update HEAD
G18/MX2: Use the cache partition as a buffer for XBMC (Fix Playback)

We were not using the cache partition in linux previously witch left 440.9MB of unused nand and left us wasting ram or userdata to buffer video, After this patch it allows the wasted nand to be used as a buffer and saves alot of ram in result.
XBMC: Don't use rambuffer patch
XBMC: Raise ALSA periods to 16

This will work aslong as GUI sounds are disabled, if GUI sounds are not disabled it could cause heavy use of cpu.