drm/amd/display: Migrate HUBBUB register access from hwseq to hubbub component.
[why]
Direct HUBBUB register access in the hwseq layer was creating register conflicts.
[how]
Migrated HUBBUB registers from hwseq to the hubbub component.
Reviewed-by: Martin Leung <martin.leung@amd.com>
Signed-off-by: Bhuvanachandra Pinninti <bpinnint@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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