drm_hwcomposer: Clean up HWC3 implementations around configs
Deprecate usage of HWC2 functions around setting configs. As a part of this, add appropriate new interfaces to HwcDisplay that the HWC3 implementation is built on top of.
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Deprecate usage of HWC2 functions around setting configs. As a part of this, add appropriate new interfaces to HwcDisplay that the HWC3 implementation is built on top of.