drm/i915/vrr: Allow VRR to be toggled during fastsets

Now that VRR enable/disable are called from convenient places
it is trivial to allow it to change state during fastsets.
Make it so.

Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/7542Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230320203352.19515-7-ville.syrjala@linux.intel.comReviewed-by: Mitul Golani <mitulkumar.ajitkumar.golani@intel.com>

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

@@ -5804,7 +5804,8 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
 	PIPE_CONF_CHECK_I(splitter.link_count);
 	PIPE_CONF_CHECK_I(splitter.pixel_overlap);
 
-	PIPE_CONF_CHECK_BOOL(vrr.enable);
+	if (!fastset)
+		PIPE_CONF_CHECK_BOOL(vrr.enable);
 	PIPE_CONF_CHECK_I(vrr.vmin);
 	PIPE_CONF_CHECK_I(vrr.vmax);
 	PIPE_CONF_CHECK_I(vrr.flipline);