am 9d6a685b: Merge changes I430cf57b,I51f02f67,I464f13f3 into eclair

Merge commit '9d6a685ba939f413a8d3e1e97627593aa1cdf6cb' into eclair-mr2

* commit '9d6a685ba939f413a8d3e1e97627593aa1cdf6cb':
  fix [2168528] enable glTexImage2D code path in SF for software-only buffers
  fix [2168531] have software-only gralloc buffer side-step the HAL
  fix [2167050] glTexImage2D code path buggy in SurfaceFlinger