GFX api cleanup 1 of 2

Change-Id: Ib85784c18b1647e51f1d7cf2a4c956d17e1d2e3c
diff --git a/graphics/java/android/renderscript/Element.java b/graphics/java/android/renderscript/Element.java
index 28914ce..060f526 100644
--- a/graphics/java/android/renderscript/Element.java
+++ b/graphics/java/android/renderscript/Element.java
@@ -724,6 +724,9 @@
         }
         return rs.mElement_MATRIX_4X4;
     }
+
+    /** @deprecated use MATRIX_4X4
+    */
     public static Element MATRIX4X4(RenderScript rs) {
         return MATRIX_4X4(rs);
     }