Adding google license header to source files
This was done automatically using this script:
https://github.com/google/addlicense
```
go get -u github.com/google/addlicense
$HOME/go/bin/addlicense -c "Google LLC" -l apache .
```
Manually added the license headers to meson.build files as well
Signed-off-by: Brandon Kim <brandonkim@google.com>
Change-Id: I7a17364912c8af2317a1d47a4222f7b3bdc5dc98
diff --git a/ncsid/test/net_iface_mock.h b/ncsid/test/net_iface_mock.h
index 5fcbcc9..bcf9209 100644
--- a/ncsid/test/net_iface_mock.h
+++ b/ncsid/test/net_iface_mock.h
@@ -1,3 +1,19 @@
+/*
+ * Copyright 2021 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
#pragma once
#include <net_iface.h>