Make RSCppTest class public (to eliminate warning/error from junit).

Change-Id: Iee521c4cbe38fe5ad6411822e6b9cb1bb46526f8
diff --git a/tests/tests/rscpp/src/android/cts/rscpp/RSCppTest.java b/tests/tests/rscpp/src/android/cts/rscpp/RSCppTest.java
index 7ce6688..9fa8216 100644
--- a/tests/tests/rscpp/src/android/cts/rscpp/RSCppTest.java
+++ b/tests/tests/rscpp/src/android/cts/rscpp/RSCppTest.java
@@ -24,7 +24,7 @@
 import android.renderscript.*;
 import android.util.Log;
 
-class RSCppTest extends AndroidTestCase {
+public class RSCppTest extends AndroidTestCase {
 
     Context mCtx;
     Resources mRes;
@@ -40,4 +40,4 @@
     protected void tearDown() throws Exception {
         super.tearDown();
     }
-}
\ No newline at end of file
+}