SF: Add dumpsys flag to dump raw EDID

Bug: 140429990
Test: adb shell dumpsys SurfaceFlinger --edid <hwc-id> | xxd
Test: adb shell dumpsys SurfaceFlinger --edid <hwc-id> | parse-edid
Change-Id: Iccfaf3a0ac7c4b0eb05f0ac6a9d0de31a8de46dc
2 files changed