[PATCH] flake: Restrict flake to the patchwork directory

[Finucane, Stephen]

> Right now flake will inspect everything in the root directory. We can
> avoid a bit of work, telling it to only look at the patchwork/
> directory.
> 
> Signed-off-by: Damien Lespiau <damien.lespiau at intel.com>

Do you think we should be scanning 'tests' also? Enhancing the readability of tests is undoubtedly a good thing.

Stephen