drm/i915/display: Use intel_crtc_destroy_state instead kfree

intel_encoder_current_mode() seems to leak some resource because
it uses kfree instead of intel_crtc_destroy_state let us fix that.
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231010183101.704439-2-suraj.kandpal@intel.com

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

@@ -3999,7 +3999,7 @@ intel_encoder_current_mode(struct intel_encoder *encoder)
 	}
 
 	if (!intel_crtc_get_pipe_config(crtc_state)) {
-		kfree(crtc_state);
+		intel_crtc_destroy_state(&crtc->base, &crtc_state->uapi);
 		kfree(mode);
 		return NULL;
 	}
@@ -4008,7 +4008,7 @@ intel_encoder_current_mode(struct intel_encoder *encoder)
 
 	intel_mode_from_crtc_timings(mode, &crtc_state->hw.adjusted_mode);
 
-	kfree(crtc_state);
+	intel_crtc_destroy_state(&crtc->base, &crtc_state->uapi);
 
 	return mode;
 }