sdm: Add PictureQuality and RenderIntent attributes in display pluggable

- Clients expects picture quality and render intent attributes to properly
  identify the color modes.
- Add these two attributes for the HDR modes on external display when
  reporting color modes to client.

CRs-Fixed: 2483416
Change-Id: I3a247b43d8c338b25026ed9d4c242de09f5ff8bf
1 file changed