Add Seriban Latin keyboard layout as comments

Bug: 6867914
Bug: 6867842
Change-Id: I3434434628e72fdb127d158de6c17fdfa77ee9c8
diff --git a/java/res/values/strings.xml b/java/res/values/strings.xml
index 12abf84..cb793cb 100644
--- a/java/res/values/strings.xml
+++ b/java/res/values/strings.xml
@@ -303,6 +303,15 @@
     <!-- Description for English (United States) keyboard subtype with explicit keyboard layout [CHAR LIMIT=25]
          This should be identical to subtype_en_US aside from the trailing (%s). -->
     <string name="subtype_with_layout_en_US">English (US) (<xliff:g id="layout">%s</xliff:g>)</string>
+    <!-- TODO: Uncomment once we can handle IETF language tag with script name specified.
+         Description for Serbian Cyrillic keyboard subtype [CHAR LIMIT=25]
+    <string name="subtype_serbian_cyrillic">Serbian (Cyrillic)</string>
+         Description for Serbian Latin keyboard subtype [CHAR LIMIT=25]
+    <string name="subtype_serbian_latin">Serbian (Latin)</string>
+         Description for Serbian Latin keyboard subtype with explicit keyboard layout [CHAR LIMIT=25]
+         This should be identical to subtype_serbian_latin aside from the trailing (%s).
+    <string name="subtype_with_layout_sr-Latn">Serbian (Latin) (<xliff:g id="layout">%s</xliff:g>)</string>
+    -->
     <!-- Description for language agnostic keyboard subtype [CHAR LIMIT=25] -->
     <string name="subtype_no_language">No language</string>
     <!-- Description for language agnostic QWERTY keyboard subtype [CHAR LIMIT=25] -->