Fixes typo in comments (#52408)

packages/flutter/lib/src/services/platform_views.dart

@@ -133,7 +133,7 @@ class PlatformViewsService {
   /// Platform view factories are typically registered by plugin code.
   ///
   /// The `id, `viewType, and `layoutDirection` parameters must not be null.
-  /// If `creationParams` is non null then `cretaionParamsCodec` must not be null.
+  /// If `creationParams` is non null then `creationParamsCodec` must not be null.
   static Future<UiKitViewController> initUiKitView({
     @required int id,
     @required String viewType,