- Revert odroidgo changes to drm_ctx
- Introduce new drm_go2_ctx specifically for odroidgo2 (and libgo2)
- Add hw_scaling option to mitigate builtin gl scaling/filtering and to
use libgo2 and rga's hw scaling and bicubic filtering via librga. The
quality of the image is improved by this and should be a bit faster.
Credits to CrashOverride for the initial libgo2 port and
commit to RA. And to natinusala for the initial cleanup/commit in the original
drm_ctx driver. NOirBRight for finding this setting and testing.
