Add GridRows tag to support emoji keyboard

Bug: 6370846
Change-Id: Ia68284b2402e52d835040da900a51cca669add2f
diff --git a/java/res/values/attrs.xml b/java/res/values/attrs.xml
index 4c50976..7ebaf75 100644
--- a/java/res/values/attrs.xml
+++ b/java/res/values/attrs.xml
@@ -215,6 +215,11 @@
         <attr name="iconEmojiKey" format="reference" />
     </declare-styleable>
 
+    <declare-styleable name="Keyboard_GridRows">
+        <attr name="codesArray" format="reference" />
+        <attr name="textsArray" format="reference" />
+    </declare-styleable>
+
     <declare-styleable name="Keyboard_Key">
         <!-- The unicode value that this key outputs.
              Code value represented in hexadecimal prefixed with "0x" or code value reference using