drm/i915/display: split out crtc state dump to a separate file

Declutter intel_display.c by splitting out crtc state dumping to a
separate file.

v2: intel_pipe_config_dump -> intel_crtc_state_dump

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/f72a5626473692910263671af91e02251ed87eea.1655372759.git.jani.nikula@intel.com
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index c9dcb53..ea25322 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -210,6 +210,7 @@
 	display/intel_combo_phy.o \
 	display/intel_connector.o \
 	display/intel_crtc.o \
+	display/intel_crtc_state_dump.o \
 	display/intel_cursor.o \
 	display/intel_display.o \
 	display/intel_display_power.o \