Start ICS header cleanup and finish type matrix.

Change-Id: If65f96f08c958d330862c543d85dd9d4a0f90e06
diff --git a/graphics/java/android/renderscript/Byte4.java b/graphics/java/android/renderscript/Byte4.java
index c6e7f63..a55a696 100644
--- a/graphics/java/android/renderscript/Byte4.java
+++ b/graphics/java/android/renderscript/Byte4.java
@@ -28,6 +28,13 @@
     public Byte4() {
     }
 
+    public Byte4(byte initX, byte initY, byte initZ, byte initW) {
+        x = initX;
+        y = initY;
+        z = initZ;
+        w = initW;
+    }
+
     public byte x;
     public byte y;
     public byte z;