Merge pull request #572 from XueqiangWei/hotplug_memory_update_sub-test_name

hotplug_memory: update sub-test name

qemu/tests/cfg/hotplug_mem.cfg

@@ -19,7 +19,7 @@
             del numa_cpus
             del numa_nodeid
             only after
-            only reboot
+            only guest_reboot
         - two:
             guest_numa_nodes = "node0 node1"
             del numa_mem
@@ -38,16 +38,16 @@
         - policy_interleave:
             policy_mem = interleave
             host-nodes = 0
-            only reboot
+            only guest_reboot
             only after
         - policy_preferred:
             policy_mem = preferred
             host-nodes = 0
-            only reboot
+            only guest_reboot
             only after
         - no_policy:
             del policy_mem
-            only reboot
+            only guest_reboot
             only after
     variants:
         - backend_ram:
@@ -93,7 +93,7 @@
             reboot_method = shell
             kill_vm_on_error = yes
             reboot_count = 1
-        - migration:
+        - guest_migration:
             sub_type = migration
             migration_test_command = help
             migration_bg_command = "cd /tmp; nohup tcpdump -q -i any -t ip host localhost"