Fix typo with register native allocation.

bug 18579193

Change-Id: I42d30709b79a37d6a4126559a511e98e9c8d4808
diff --git a/rs/java/android/renderscript/RenderScript.java b/rs/java/android/renderscript/RenderScript.java
index 541cce8..e86c461 100644
--- a/rs/java/android/renderscript/RenderScript.java
+++ b/rs/java/android/renderscript/RenderScript.java
@@ -1185,7 +1185,7 @@
         }
         mRWLock = new ReentrantReadWriteLock();
         try {
-            registerNativeAllocation.invoke(sRuntime, 4 * 1024 * 1024 * 1024); // 4MB for GC sake
+            registerNativeAllocation.invoke(sRuntime, 4 * 1024 * 1024); // 4MB for GC sake
         } catch (Exception e) {
             Log.e(RenderScript.LOG_TAG, "Couldn't invoke registerNativeAllocation:" + e);
             throw new RSRuntimeException("Couldn't invoke registerNativeAllocation:" + e);