[sheepdog] [PATCH v2 2/4] tests/functional: use _requirements to control md tests

[MORITA Kazutaka]

> 
> This means we have to pass -md to check to test md test cases, I think current
> approach(set md=true in some md-only tests) is better than it.

We have to run "check -md" to test the md feature either way, right?
Running the md-only tests in both "check" and "check -md" is
redundant.

Thanks,

Kazutaka