Merge "Fix vts tests:" into oc-dev am: 14b34e19d6  -s ours
am: 7a5dad06bf  -s ours

Change-Id: If1acc3cef00cd887446d135a89510e241a616dca
diff --git a/bluetooth/1.0/default/vendor_interface.cc b/bluetooth/1.0/default/vendor_interface.cc
index bb66460..a291e14 100644
--- a/bluetooth/1.0/default/vendor_interface.cc
+++ b/bluetooth/1.0/default/vendor_interface.cc
@@ -282,6 +282,8 @@
 
     int power_state = BT_VND_PWR_OFF;
     lib_interface_->op(BT_VND_OP_POWER_CTRL, &power_state);
+
+    lib_interface_->cleanup();
   }
 
   if (lib_handle_ != nullptr) {