Deprecate RS Java APIs.

This CL marks RenderScript Java APIs as deprecated.

Bug: 168711199
Test: m
Test: CtsRenderscriptTestCases
Test: CtsRsCppTestCases
Test: CtsRsBlasTestCases
Change-Id: Id271a794679d445c480d62c87ae6c8150f6901f8
Merged-In: Id271a794679d445c480d62c87ae6c8150f6901f8
(cherry picked from commit 8b4548c43a)

rs/java/android/renderscript/ProgramFragmentFixedFunction.java

@@ -29,6 +29,7 @@ import android.compat.annotation.UnsupportedAppUsage;
  * blended with results of up to two texture lookups.</p
  *
  **/
+@Deprecated
 public class ProgramFragmentFixedFunction extends ProgramFragment {
     ProgramFragmentFixedFunction(long id, RenderScript rs) {
         super(id, rs);