Fix bugs in scriptGroup.

Intrinsics were treating inputs as fields rather than varObjs.
This would generate a lot of extra work for the reflection
layers. Also we would like to deprecate this path in the future.

bug 7318821

Change-Id: I81e8c562ba05aae5d085d5c08e91e2c4877265c5
diff --git a/graphics/java/android/renderscript/ScriptIntrinsicBlur.java b/graphics/java/android/renderscript/ScriptIntrinsicBlur.java
index 2a04b42..11164e3 100644
--- a/graphics/java/android/renderscript/ScriptIntrinsicBlur.java
+++ b/graphics/java/android/renderscript/ScriptIntrinsicBlur.java
@@ -63,7 +63,7 @@
      */
     public void setInput(Allocation ain) {
         mInput = ain;
-        bindAllocation(ain, 1);
+        setVar(1, ain);
     }
 
     /**