Fix comment on config_defaultTextClassifierPackage

    <!-- The package name for the default system textclassifier service.

    <!-- The package name for the default system textclassifier service.

         This service must be trusted, as it can be activated without explicit consent of the user.

         This service must be trusted, as it can be activated without explicit consent of the user.

         (e.g. com.android.textclassifier/.TextClassifierServiceImpl).

         Example: "com.android.textclassifier"

         If no textclassifier service with the specified name exists on the device (or if this is

         If no textclassifier service with the specified name exists on the device (or if this is

         set to empty string), a default textclassifier will be loaded in the calling app's process.

         set to empty string), a default textclassifier will be loaded in the calling app's process.

         See android.view.textclassifier.TextClassificationManager.

         See android.view.textclassifier.TextClassificationManager.