tree d3406faa3abbfa4aba49447b93fc45cb20686031
parent 330b21d64ec7e06ebaf6ad74d1374f8ccb9eb43f
author Nagesh Subba Reddy <nageshsreddy@codeaurora.org> 1440896509 -0700
committer Shuzhen Wang <shuzhenw@codeaurora.org> 1441829090 -0700

gralloc: Default flexible YUV format to NV21_ZSL

There could be buffers allocated in flexible YUV format without any
camera usage flags. Default the format for such buffers to NV21.
Fixes CTS tests testYuvImageWriterReaderOperation, testAbandonedSurfaceExceptions

Change-Id: I72693b1d35d2803df16d3588b3428bcf1ab0b3eb