[Kuryr] Use gate hook in dsvm jobs
If gate hook is not used, every changes need to go through
project-config. This is suboptimal because changes in project-config
is not gated by Kuryr.
# Keep localrc to be able to set some vars in pre_test_hook
export KEEP_LOCALRC=1
+ function gate_hook {{
+ bash -xe $BASE/new/kuryr-libnetwork/kuryr_libnetwork/tests/contrib/gate_hook.sh
+ }}
+ export -f gate_hook
+
cp devstack-gate/devstack-vm-gate-wrap.sh ./safe-devstack-vm-gate-wrap.sh
./safe-devstack-vm-gate-wrap.sh
