fix keytests for azerty keyboard

Azerty keymap is different when compared to Qwerty.
Using "A", fails the testcase in case of azerty, hence
use "X" which is the same in both azerty and qwerty.

Change-Id: Ia7a570167dc875eca9365171f19f19e056113ffa
diff --git a/tests/tests/text/src/android/text/method/cts/NumberKeyListenerTest.java b/tests/tests/text/src/android/text/method/cts/NumberKeyListenerTest.java
index 5c0b9f1..bf1b6fb 100644
--- a/tests/tests/text/src/android/text/method/cts/NumberKeyListenerTest.java
+++ b/tests/tests/text/src/android/text/method/cts/NumberKeyListenerTest.java
@@ -128,8 +128,8 @@
         SpannableString str = new SpannableString("012345");
         assertEquals('0', mNumberKeyListener.lookup(event1, str));
 
-        KeyEvent event2 = new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_A);
-        str = new SpannableString("ABCD");
+        KeyEvent event2 = new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_X);
+        str = new SpannableString("XYZW");
         assertEquals('\0', mNumberKeyListener.lookup(event2, str));
 
         try {