example: update license for discovery-loop.py

The libnvme license is LGPL-2.1-or-later, update the only Apache-2.0
user left.

Signed-off-by: Martin Belanger <[email protected]>
Signed-off-by: Hannes Reinecke <[email protected]>
Signed-off-by: Daniel Wagner <[email protected]>

Author: igaw

libnvme/examples/discover-loop.py

@@ -1,5 +1,5 @@
 #!/usr/bin/python3
-# SPDX-License-Identifier: Apache-2.0
+# SPDX-License-Identifier: LGPL-2.1-or-later
 '''
 Example script for nvme discovery
 '''