polkit: on async pk requests, re-validate action/details

When we do an async pk request, let's store which action/details we used
for the original request, and when we are called for the second time,
let's compare. If the action/details changed, let's not allow the access
to go through.

(cherry picked from commit 7f569822)
(cherry picked from commit 0697d0d9)
(cherry picked from commit 54791aff)