tempest: Enable stable_rescue tests with Libvirt

Enable the compute feature for stable device rescue on all but LXC and
Xen virt_types.

Depends-On: https://review.opendev.org/#/c/700812/
Depends-On: https://review.opendev.org/#/c/700813/
Change-Id: Icfc717b4932be050a169fc00dae720d29a6497f7
diff --git a/lib/tempest b/lib/tempest
index 525abcb..6e87e54 100644
--- a/lib/tempest
+++ b/lib/tempest
@@ -570,6 +570,7 @@
             iniset $TEMPEST_CONFIG compute-feature-enabled snapshot False
             iniset $TEMPEST_CONFIG compute-feature-enabled suspend False
         else
+            iniset $TEMPEST_CONFIG compute-feature-enabled stable_rescue True
             iniset $TEMPEST_CONFIG compute-feature-enabled swap_volume True
         fi
     fi