qemu: add a check for nodeset in qemuDomainSetNumaParamsLive

We will try to set the node to cpuset.mems without check if
it is available, since we already have helper to check this.
Call virNumaNodesetIsAvailable to check if node is available,
then try to change it in the cgroup.
Signed-off-by: NLuyao Huang <lhuang@redhat.com>

src/qemu/qemu_driver.c

@@ -9995,6 +9995,9 @@ qemuDomainSetNumaParamsLive(virDomainObjPtr vm,
         goto cleanup;
     }
 
+    if (!virNumaNodesetIsAvailable(nodeset))
+        goto cleanup;
+
     /* Ensure the cpuset string is formatted before passing to cgroup */
     if (!(nodeset_str = virBitmapFormat(nodeset)))
         goto cleanup;