Add @UnsupportedAppUsage annotations

For packages:
  android.bluetooth.le
  android.bluetooth

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: Ifcf24c0617acd7facc0e03f30a95c3a6b09b205c
Merged-In: I88a1311e27c5f9a5f9d1035db76034f86f650efc
diff --git a/framework/java/android/bluetooth/BluetoothSap.java b/framework/java/android/bluetooth/BluetoothSap.java
index 4848162..4311255 100644
--- a/framework/java/android/bluetooth/BluetoothSap.java
+++ b/framework/java/android/bluetooth/BluetoothSap.java
@@ -16,6 +16,7 @@
 
 package android.bluetooth;
 
+import android.annotation.UnsupportedAppUsage;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
@@ -280,6 +281,7 @@
      * @return false on error, true otherwise
      * @hide
      */
+    @UnsupportedAppUsage
     public boolean disconnect(BluetoothDevice device) {
         if (DBG) log("disconnect(" + device + ")");
         final IBluetoothSap service = mService;