Add support for 3 new blend modes when blending with framebuffer:   Add   Multiply   Screen
Add support for 3 new blend modes when blending with framebuffer:
  Add
  Multiply
  Screen

Change-Id: I92a3c2612c86613087568bf0c03cc6f92b5ded44

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base