drm/i915/crc: convert intel_pipe_crc.c to struct intel_display

Going forward, struct intel_display is the main display device data
pointer. Convert as much as possible of intel_pipe_crc.c to struct
intel_display.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://lore.kernel.org/r/9bb18395d57d5353535e0d385119366821162a86.1742906146.git.jani.nikula@intel.com


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