Mark configuration strings untranslatable.

Change-Id: If8a35fe33e2091bcf95cc543e76df1184d52ce2b
diff --git a/java/res/values/config.xml b/java/res/values/config.xml
index 033224e..63af9a9 100644
--- a/java/res/values/config.xml
+++ b/java/res/values/config.xml
@@ -46,12 +46,12 @@
     <integer name="config_touch_noise_threshold_millis">40</integer>
     <dimen name="config_touch_noise_threshold_distance">2.0mm</dimen>
     <!-- This configuration is the index of the array {@link KeyboardSwitcher.KEYBOARD_THEMES}. -->
-    <string name="config_default_keyboard_theme_id">4</string>
-    <string name="config_text_size_of_language_on_spacebar">small</string>
+    <string name="config_default_keyboard_theme_id" translatable="false">4</string>
+    <string name="config_text_size_of_language_on_spacebar" translatable="false">small</string>
     <integer name="config_max_popup_keyboard_column">9</integer>
     <!-- Whether or not auto-correction should be enabled by default -->
     <bool name="enable_autocorrect">true</bool>
-    <string-array name="auto_correction_threshold_values">
+    <string-array name="auto_correction_threshold_values" translatable="false">
         <!-- Off, When auto correction setting is Off, this value is not used. -->
         <item></item>
         <!-- Modest : Suggestion whose normalized score is greater than this value