drm/i915: Enable per-lane DP drive settings for bxt/glk

Now the bxt/glk PHY code is ready for per-lane drive settings
so enable it.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240412175818.29217-9-ville.syrjala@linux.intel.com


Reviewed-by: Jani Nikula <jani.nikula@intel.com>