drm/i915: Add PORT_{H,I} to intel_port_to_power_domain()

We need to go up to PORT_I (aka. TC6) these days.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200630215601.28557-3-ville.syrjala@linux.intel.com


Reviewed-by: José Roberto de Souza <jose.souza@intel.com>