anv/blorp: sample input attachments with resolves on BDW

anv/blorp: sample input attachments with resolves on BDW

On Broadwell we still need to do a resolve between the subpass
that writes and the subpass that reads when there is a
self-dependency because HW could not see fast-clears and works
on the render cache as if there was regular non-fast-clear surface.

Fixes 16 tests on BDW:

dEQP-VK.renderpass.formats.*.input.clear.store.self_dep*

Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>