Merge pull request #11883 from Patsy-issa/ember-inject-controller-public

[DOC Release] Made Ember.inject.controller() public

Author: rwjblue

Diff for: packages/ember-runtime/lib/controllers/controller.js

@@ -51,7 +51,7 @@ function controllerInjectionHelper(factory) {
   @param {String} name (optional) name of the controller to inject, defaults
          to the property's name
   @return {Ember.InjectedProperty} injection descriptor instance
-  @private
+  @public
 */
 createInjectionHelper('controller', controllerInjectionHelper);