Restore DUMP permission check for BluetoothManagerService

Bug: 27150536
Change-Id: I6e07f8f5f7476c6cd6dca79e2fb5e8c8412493ec
diff --git a/services/core/java/com/android/server/BluetoothManagerService.java b/services/core/java/com/android/server/BluetoothManagerService.java
index 499b706..6d0d9e9 100644
--- a/services/core/java/com/android/server/BluetoothManagerService.java
+++ b/services/core/java/com/android/server/BluetoothManagerService.java
@@ -1672,6 +1672,7 @@
 
     @Override
     public void dump(FileDescriptor fd, PrintWriter writer, String args[]) {
+      mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DUMP, TAG);
       if (mBluetoothBinder == null) {
         writer.println("Bluetooth Service not connected");
       } else {