fix typo

Author: Julian Kast

base/src/main/java/com/smartdevicelink/managers/screen/choiceset/PreloadPresentChoicesOperation.java

@@ -419,7 +419,7 @@ public void onResponse(int correlationId, RPCResponse response) {
     }
 
     private void presentChoiceSet(final CompletionListener listener) {
-        // add listeners if there is a keboard
+        // add listeners if there is a keyboard
         if (keyboardListener != null) {
             addListeners();
         }