drm/i915/dp: Pass connector state all the way to dsc_compute_link_config()

Going forward, we'll need the connector state in
dsc_compute_link_config(). Pass it along through the chain. Maintain the
same parameter order where relevant.

Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/645d950a80df5fd4441d69aba4893ab263b3e555.1738327620.git.jani.nikula@intel.com