fix(google-maps): correct minor typo in the code (#21915)

Position’s comment is wrong

(cherry picked from commit b9a26a2)

Author: ilmalte

src/google-maps/map-marker/map-marker.ts

@@ -56,7 +56,7 @@ export class MapMarker implements OnInit, OnChanges, OnDestroy, MapAnchorPoint {
   private _title: string;
 
   /**
-   * Title of the marker. See:
+   * Position of the marker. See:
    * developers.google.com/maps/documentation/javascript/reference/marker#MarkerOptions.position
    */
   @Input()