frameworks_native: Add back PixelFormatInfo

 Author:    Menno van Grinsven <scanno71@gmail.com>

Change-Id: I8c7e9de0cbe374ed4ace51478c2f78d9bba5f9b0
Merge pull request #2 from omnirom/android-5.0

frameworks_native: Add back PixelFormatInfo