move ScrollDispatchModule re-export to public-api

Author: mmalerba

src/cdk/scrolling/index.ts

@@ -7,9 +7,3 @@
  */
 
 export * from './public-api';
-
-/**
- * @deprecated ScrollingModule has been renamed to ScrollingModule.
- * @breaking-change 8.0.0 delete this re-export
- */
-export {ScrollingModule as ScrollDispatchModule} from './scrolling-module';

src/cdk/scrolling/public-api.ts

@@ -14,3 +14,9 @@ export * from './viewport-ruler';
 export * from './virtual-for-of';
 export * from './virtual-scroll-strategy';
 export * from './virtual-scroll-viewport';
+
+/**
+ * @deprecated ScrollingModule has been renamed to ScrollingModule.
+ * @breaking-change 8.0.0 delete this re-export
+ */
+export {ScrollingModule as ScrollDispatchModule} from './scrolling-module';