Correct video offscreen memory allocation routines.
Correct video offscreen memory allocation routines.

  It was always failing in the first allocation, if using XAA, what caused
some players to not work correct. This is a major problem for the MSOC as
it still only supports XAA.
  Also add a workaround for a hardware problem, as described in
"SM501 Rev.AA engineering addendum v0.1.pdf"
"A-27 PIXELS TOO BRIGHT ON VIDEO SHRINK".

lumag/xf86-video-siliconmotion,lumag/xf86-video-siliconmotion