sdm: Add destination scalar support for HDMI as primary.

1. Add support to change layer mixer resolution of HDMI primary.
2. Change layer mixer resolution based on video layer resolution.
3. Populate display resolution and update it as layer mixer resolution
   on hdmi mode change.
4. Update destination scale data on layer mixer resolution change.

Change-Id: I9a491296e1526a3664a58bf2185a49360f2e059c
CRs-Fixed: 1005180
13 files changed