Fix doc comment line accidentally removed (#108654)

Fixing issue in commit c92e0014

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

@@ -22,6 +22,7 @@ class AutofillHints {
   ///
   /// This hint will be translated to the below values on different platforms:
   ///
+  /// * Android: [AUTOFILL_HINT_POSTAL_ADDRESS_LOCALITY](https://developer.android.com/reference/androidx/autofill/HintConstants#AUTOFILL_HINT_POSTAL_ADDRESS_LOCALITY).
   /// * iOS: [addressCity](https://developer.apple.com/documentation/uikit/uitextcontenttype).
   /// * Otherwise, the hint string will be used as-is.
   static const String addressCity = 'addressCity';