kvm: fix set_gsi_routing() test
kvm: fix set_gsi_routing() test

We have to create irqchip in kernel before we are allowed to set up
routing.

BUG=None
TEST=cargo test -p kvm

Change-Id: Icee680ce3cc16af9cf4492c048f0b9b3cbe98d09
Signed-off-by: Dmitry Torokhov <10a8c465cefc9bdd6c925e26964d23c90f1141cc@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1192230
Reviewed-by: Zach Reizner <3374927928a53d04457674c546bd4de57c2044ec@chromium.org>
Reviewed-by: Dylan Reid <c791bfe44996c1eed9c7149a0c5f12a86d58eb85@chromium.org>

google/crosvm,google/crosvm,google/crosvm,google/crosvm