Add @UnsupportedAppUsage annotations

For packages:
  android.renderscript

This is an automatically generated CL. See go/UnsupportedAppUsage
for more details.

Exempted-From-Owner-Approval: Mechanical changes to the codebase
which have been approved by Android API council and announced on
android-eng@

Bug: 110868826
Test: m
Change-Id: I1aa8ebca448547031b426a7b305c5c3d6fcf2652
diff --git a/rs/java/android/renderscript/Element.java b/rs/java/android/renderscript/Element.java
index 667bf71..b8eb3a1 100644
--- a/rs/java/android/renderscript/Element.java
+++ b/rs/java/android/renderscript/Element.java
@@ -16,6 +16,8 @@
 
 package android.renderscript;
 
+import android.annotation.UnsupportedAppUsage;
+
 /**
  * <p>An Element represents one item within an {@link
  * android.renderscript.Allocation}.  An Element is roughly equivalent to a C
@@ -1146,6 +1148,7 @@
      * @param dt The DataType for the new element.
      * @return Element
      */
+    @UnsupportedAppUsage
     static Element createUser(RenderScript rs, DataType dt) {
         DataKind dk = DataKind.USER;
         boolean norm = false;