am 6c858c25: am b4093c12: (-s ours) hwui: Caches: use mBoundTextures only for GL_TEXTURE_2D - DO NOT MERGE

* commit '6c858c25f31bcdd72b60cbd0c91b085d9f298ffa':
  hwui: Caches: use mBoundTextures only for GL_TEXTURE_2D - DO NOT MERGE