Add metadata in direct display surface to support ANativeWindow use cases.

When direct display surface is used with metadata, ComsumerQueue dequeue
reports error because metadata size is hardcoded as 0. It breaks
ANativeWindow case because it has a metadata on the fly.

Create a metadata structure, which could be read and used in the future.

Bug: 64155181
Test: Manual
Change-Id: Ieb35a69d26213769497c6afc7151dd135150c795