Refactor action target names Host-quiesce

The target change is:
obmc-quiesce-host -> obmc-host-quiesce

Change-Id: I713c9c694fbc5b45e0ee86c0e7ccc7f544bc823c
Signed-off-by: Josh D. King <jdking@us.ibm.com>
diff --git a/pychassisctl/chassis_control.py b/pychassisctl/chassis_control.py
index b3662d0..c25c2ff 100644
--- a/pychassisctl/chassis_control.py
+++ b/pychassisctl/chassis_control.py
@@ -150,7 +150,7 @@
     def quiesce(self):
         intf = self.getInterface('systemd')
         f = getattr(intf, 'StartUnit')
-        f.call_async('obmc-quiesce-host@0.target', 'replace')
+        f.call_async('obmc-host-quiesce@0.target', 'replace')
         return None
 
     @dbus.service.method(DBUS_NAME,