drm_hwcomposer: Partially implement HWC2 API

Implement the HWC2 API for drm_hwcomposer. There are still
a few TODOs sprinkled around, the biggest of which is virtual
display support.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Change-Id: Ib3d48dabce1941b341d5a966d767baab8db1db10
Signed-off-by: Robert Foss <robert.foss@collabora.com>
2 files changed