Add @UnsupportedAppUsage annotations

For packages:
  android.util.proto
  android.util.jar
  android.util.apk
  android.util

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: Ia0f48c244b0fbe33d40d797702a82303648196ed
diff --git a/core/java/android/util/SparseArray.java b/core/java/android/util/SparseArray.java
index af18caa..aa5ca35 100644
--- a/core/java/android/util/SparseArray.java
+++ b/core/java/android/util/SparseArray.java
@@ -19,6 +19,7 @@
 import com.android.internal.util.ArrayUtils;
 import com.android.internal.util.GrowingArrayUtils;
 
+import android.annotation.UnsupportedAppUsage;
 import libcore.util.EmptyArray;
 
 /**
@@ -55,8 +56,11 @@
     private static final Object DELETED = new Object();
     private boolean mGarbage = false;
 
+    @UnsupportedAppUsage
     private int[] mKeys;
+    @UnsupportedAppUsage
     private Object[] mValues;
+    @UnsupportedAppUsage
     private int mSize;
 
     /**