hwc3: edid: fallback to drmModeConnector display size

... if we fail to parse the EDID blob.

In a downstream crosvm implementation, we don't provide the detailed
timing block in the EDID blob. We provide a display ID extension
instead.

In following CLs, we will refactor the EDID parsing logic to also take
that and correctly fallback the display size in a cascade way.

Bug: b/328091332
Test: presubmit
Change-Id: Ic18cd5a9d8b6298c85c8a629d5b4c9b26c0ce898
1 file changed