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/ApfProgramEvent.java b/core/java/android/net/metrics/ApfProgramEvent.java
index ad4588f..5dabf35 100644
--- a/core/java/android/net/metrics/ApfProgramEvent.java
+++ b/core/java/android/net/metrics/ApfProgramEvent.java
@@ -17,6 +17,7 @@
 package android.net.metrics;
 
 import android.annotation.IntDef;
+import android.annotation.UnsupportedAppUsage;
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.text.TextUtils;
@@ -47,13 +48,20 @@
     @Retention(RetentionPolicy.SOURCE)
     public @interface Flags {}
 
+    @UnsupportedAppUsage
     public long lifetime;       // Maximum computed lifetime of the program in seconds
+    @UnsupportedAppUsage
     public long actualLifetime; // Effective program lifetime in seconds
+    @UnsupportedAppUsage
     public int filteredRas;     // Number of RAs filtered by the APF program
+    @UnsupportedAppUsage
     public int currentRas;      // Total number of current RAs at generation time
+    @UnsupportedAppUsage
     public int programLength;   // Length of the APF program in bytes
+    @UnsupportedAppUsage
     public int flags;           // Bitfield compound of FLAG_* constants
 
+    @UnsupportedAppUsage
     public ApfProgramEvent() {
     }
 
@@ -99,6 +107,7 @@
         }
     };
 
+    @UnsupportedAppUsage
     public static @Flags int flagsFor(boolean hasIPv4, boolean multicastFilterOn) {
         int bitfield = 0;
         if (hasIPv4) {