With commit
f0fe66b30b,
the network config in case of NoCloudConfigDrive was supported only if
it was in the format:
```yaml
network:
config: ...
version: 1|2
```
Before the commit, the following format was also supported:
```yaml
config: ...
version: 1
```
Added support for both formats and made sure that the `network` key is
not required.
Change-Id: I7478a8654443db83f0f3995839811910c468a06c
Signed-off-by: Adrian Vladu <avladu@cloudbasesolutions.com>
1a98b6742a