mm-video-v4l2: vdec: Add extradata support in decoder

- Create new Input and Output extradata ports.
- Add port definition support on extradata ports.
- Add changes to use and free the buffers
  on extradata port.

CRs-Fixed: 2047901

Change-Id: I4bddb1f55b87df118aa28948784ffa55399f4d36
2 files changed