Fix checkbuild breakage on dicttool

This CL fix the checkbuild build, though I'm not sure it can create
working dicttool or not.

Change-Id: I5aec34a0f72441c75ac48184c0550b8e0fc40634

tools/dicttool/compat/com/android/inputmethod/latin/utils/LanguageModelParam.java

+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.inputmethod.latin.utils;
+
+public final class LanguageModelParam {
+}