drm/i915: Include the LUT sizes in the state dump

Dump the sizes of the software LUTs in the state dump. Makes
it a bit easier to see which is present without having to
decode it from the gamma_mode and other bits of state.

v2: Drop a spurious "is" in commit msg (Uma)
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200925131656.10022-4-ville.syrjala@linux.intel.com

drivers/gpu/drm/i915/display/intel_display.c

@@ -13246,6 +13246,12 @@ static void intel_dump_pipe_config(const struct intel_crtc_state *pipe_config,
 			    pipe_config->csc_mode, pipe_config->gamma_mode,
 			    pipe_config->gamma_enable, pipe_config->csc_enable);
 
+	drm_dbg_kms(&dev_priv->drm, "degamma lut: %d entries, gamma lut: %d entries\n",
+		    pipe_config->hw.degamma_lut ?
+		    drm_color_lut_size(pipe_config->hw.degamma_lut) : 0,
+		    pipe_config->hw.gamma_lut ?
+		    drm_color_lut_size(pipe_config->hw.gamma_lut) : 0);
+
 dump_planes:
 	if (!state)
 		return;