Bump Version Number to 2.3_r2

Bug 3486016

Change-Id: I7586719f27aabf99e2761aa2c206694dcf725580
diff --git a/tools/host/src/com/android/cts/Version.java b/tools/host/src/com/android/cts/Version.java
index 0426560..fb91d92 100644
--- a/tools/host/src/com/android/cts/Version.java
+++ b/tools/host/src/com/android/cts/Version.java
@@ -18,7 +18,7 @@
 
 public class Version {
     // The CTS version string
-    private static final String version = "2.3_r1";
+    private static final String version = "2.3_r2";
 
     private Version() {
         // no instances allowed