SurfaceTexture: Add support to update the buffer geometry

Add support to allow the buffer geometry to be updated without allocating
new memory. Clients invoke the NATIVE_WINDOW_SET_BUFFERS_GEOMETRY api with
the new width, height and format. These updated parameters take effect on
the next queued buffer.
Change-Id: I39fcd864949811131eb480a22823cfca4e93b9cd