Escape "#" sign in XML file

Change-Id: Icd38abc4a0454ca949613d8c4bb528758cd990d8
diff --git a/java/res/xml-sw768dp/rows_phone.xml b/java/res/xml-sw768dp/rows_phone.xml
index 2f718db..d06a63b 100644
--- a/java/res/xml-sw768dp/rows_phone.xml
+++ b/java/res/xml-sw768dp/rows_phone.xml
@@ -132,7 +132,7 @@
         <Key
             latin:keyStyle="num0KeyStyle" />
         <Key
-            latin:keyLabel="#"
+            latin:keyLabel="\#"
             latin:keyStyle="numKeyStyle" />
    </Row>
 </merge>