Bug - EmptyState - Secondary action button spacing

[jeff-phillips-18]

Describe the problem
When adding a secondary action button without a primary action button, the spacing is off.

How do you reproduce the problem?
Create an EmptyState component, add a secondary button but do not add a primary button.

Expected behavior
Adding a secondary variant button should space the same as a primary button.

Is this issue blocking you?
No, I can add a class to the button to space it correctly:
<Button variant="secondary" className="pf-u-mt-xl">Secondary action</Button>

Screenshots

[tlabaj]

@jeff-phillips-18 To fix the spacing issue, EmptyStatePrimary should wrap the secondary action. EmptyStatePramary is missing from the docs page and I have added it in PR #8161 . You can see a non primary button being wrapped in this example.