`A0-1-1`: Fix incorrect comments

[rcseacord]

The comments for this test all indicate the first three data structures are classes, while they are clearly structs.

https://github.com/github/codeql-coding-standards/blob/bc70b044f71eed50f07a298b69949b7f6c98807b/cpp/autosar/test/rules/A0-1-1/test.cpp#L2