Polish the DVO port registers with REG_BIT()/etc.
Signed-off-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221122120825.26338-8-ville.syrjala@linux.intel.comReviewed-by: NJani Nikula <jani.nikula@intel.com>