Use DECODER_DICT_SUFFIX on fallback to the default main dict resource.

Change-Id: Icec45c364732c0aa9ac713846cad23439b9e42b5
diff --git a/java/src/com/android/inputmethod/latin/utils/DictionaryInfoUtils.java b/java/src/com/android/inputmethod/latin/utils/DictionaryInfoUtils.java
index 2e9cc88..6734ca8 100644
--- a/java/src/com/android/inputmethod/latin/utils/DictionaryInfoUtils.java
+++ b/java/src/com/android/inputmethod/latin/utils/DictionaryInfoUtils.java
@@ -297,7 +297,8 @@
         if (0 != resourceId) {
             return resourceId;
         }
-        return res.getIdentifier(DEFAULT_MAIN_DICT, "raw", RESOURCE_PACKAGE_NAME);
+        return res.getIdentifier(DEFAULT_MAIN_DICT + DecoderSpecificConstants.DECODER_DICT_SUFFIX,
+                "raw", RESOURCE_PACKAGE_NAME);
     }
 
     /**