HIDL stuff to TestApi.

Since the CTS test for android.os is build with test_current.

Bug: 78650449
Test: android.os.cts
Change-Id: If784f4949af931c6c4efc284f1d16414705fe2d4
Merged-In: If784f4949af931c6c4efc284f1d16414705fe2d4
diff --git a/core/java/android/os/NativeHandle.java b/core/java/android/os/NativeHandle.java
index f7ffc37..f13bf5f 100644
--- a/core/java/android/os/NativeHandle.java
+++ b/core/java/android/os/NativeHandle.java
@@ -20,6 +20,7 @@
 
 import android.annotation.NonNull;
 import android.annotation.SystemApi;
+import android.annotation.TestApi;
 import android.system.ErrnoException;
 import android.system.Os;
 
@@ -32,6 +33,7 @@
  * @hide
  */
 @SystemApi
+@TestApi
 public final class NativeHandle implements Closeable {
     // whether this object owns mFds
     private boolean mOwn = false;