drm/amd/display: Roll core_link into dc_link

drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.h

drivers/gpu/drm/amd/display/dc/core/dc.c

drivers/gpu/drm/amd/display/dc/core/dc_link.c

drivers/gpu/drm/amd/display/dc/core/dc_link_ddc.c

drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c

drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c

drivers/gpu/drm/amd/display/dc/core/dc_resource.c

drivers/gpu/drm/amd/display/dc/core/dc_sink.c

drivers/gpu/drm/amd/display/dc/core/dc_stream.c

drivers/gpu/drm/amd/display/dc/dc.h

drivers/gpu/drm/amd/display/dc/dc_ddc_types.h

drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c

drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c

drivers/gpu/drm/amd/display/dc/dce100/dce100_resource.c

drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c

drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c

drivers/gpu/drm/amd/display/dc/dce112/dce112_resource.c

drivers/gpu/drm/amd/display/dc/dce80/dce80_resource.c