[CuBox] kernel: remove unsupported sound format pcm_iec958_subframe
[CuBox] kernel: remove audio hack from hdmitx
[CuBox] xbmc: Use vMeta hardware for MPEG1 decoding
[CuBox] xbmc: Avoid unnecessary ioctl calls in dove overlay, re-enable interpolation
[CuBox] xbmc: Set default graphics scale tp x1