Updated in-line documentation for Roaming to clarify that country information can optionally be returned in the response.

[trehman-gsma]

What type of PR is this?

• documentation

What this PR does / why we need it:

Small update of in-line documentation for Roaming to clarify that country information can optionally be returned in the response. Previous documentation implied that country information was mandatory when roaming is true.

Which issue(s) this PR fixes:

Fixes #124

Special notes for reviewers:

As discussed in DeviceStatus meeting on 13-03-24. It was agreed that country information is optional in cases of roaming=true.

Changelog input

 release-note
 Updated in-line documentation for Roaming to clarify that country information in response is optional.

[bigludo7]

@sachinvodafone if you can review - this is an easy one ;)