Add @UnsupportedAppUsage annotations

For packages:
  android.net.wimax
  android.net.wifi.p2p.nsd
  android.net.wifi.p2p
  android.net.wifi.hotspot2.pps
  android.net.wifi.hotspot2.omadm
  android.net.wifi.hotspot2
  android.net.wifi.aware
  android.net.wifi
  android.net.util
  android.net.sip
  android.net.rtp
  android.net.nsd
  android.net.metrics
  android.net.lowpan
  android.net.http
  android.net.captiveportal
  android.net

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: Ie25423113ee1a8071cd5039382c00de6ce0af7fd
Merged-In: I520be7a4c79e68310c12e4f55bf66acaa94145a1
diff --git a/core/java/android/net/metrics/ApfStats.java b/core/java/android/net/metrics/ApfStats.java
index 76a781d..bb2a35c 100644
--- a/core/java/android/net/metrics/ApfStats.java
+++ b/core/java/android/net/metrics/ApfStats.java
@@ -16,6 +16,7 @@
 
 package android.net.metrics;
 
+import android.annotation.UnsupportedAppUsage;
 import android.os.Parcel;
 import android.os.Parcelable;
 
@@ -26,26 +27,37 @@
 public final class ApfStats implements Parcelable {
 
     /** time interval in milliseconds these stastistics covers. */
+    @UnsupportedAppUsage
     public long durationMs;
     /** number of received RAs. */
+    @UnsupportedAppUsage
     public int receivedRas;
     /** number of received RAs matching a known RA. */
+    @UnsupportedAppUsage
     public int matchingRas;
     /** number of received RAs ignored due to the MAX_RAS limit. */
+    @UnsupportedAppUsage
     public int droppedRas;
     /** number of received RAs with a minimum lifetime of 0. */
+    @UnsupportedAppUsage
     public int zeroLifetimeRas;
     /** number of received RAs that could not be parsed. */
+    @UnsupportedAppUsage
     public int parseErrors;
     /** number of APF program updates from receiving RAs.. */
+    @UnsupportedAppUsage
     public int programUpdates;
     /** total number of APF program updates. */
+    @UnsupportedAppUsage
     public int programUpdatesAll;
     /** number of APF program updates from allowing multicast traffic. */
+    @UnsupportedAppUsage
     public int programUpdatesAllowingMulticast;
     /** maximum APF program size advertised by hardware. */
+    @UnsupportedAppUsage
     public int maxProgramSize;
 
+    @UnsupportedAppUsage
     public ApfStats() {
     }