build: update license headers to reference Google LLC (#37205)

Update the license headers throughout the repository to reference Google LLC
rather than Google Inc, for the required license headers.

PR Close #37205

packages/examples/forms/ts/radioButtons/radio_button_example.ts

@@ -1,6 +1,6 @@
 /**
  * @license
- * Copyright Google Inc. All Rights Reserved.
+ * Copyright Google LLC All Rights Reserved.
  *
  * Use of this source code is governed by an MIT-style license that can be
  * found in the LICENSE file at https://angular.io/license
@@ -17,7 +17,7 @@ import {Component} from '@angular/core';
       <input type="radio" value="lamb" name="food" [(ngModel)]="myFood"> Lamb
       <input type="radio" value="fish" name="food" [(ngModel)]="myFood"> Fish
     </form>
-    
+
     <p>Form value: {{ f.value | json }}</p>  <!-- {food: 'lamb' } -->
     <p>myFood value: {{ myFood }}</p>  <!-- 'lamb' -->
   `,