Update button press handlers to new targets

The targets have changed within openbmc for hard
power off and soft power down.  This file will be
deprecated some day but for now it needs to be
in sync with the new targets.

Resolves openbmc/openbmc#1593

Change-Id: I1e2949c67fd9b4756a6f18070eea63c8b161c7bf
Signed-off-by: Andrew Geissler <andrewg@us.ibm.com>
diff --git a/pychassisctl/chassis_control.py b/pychassisctl/chassis_control.py
index 68281e6..16fb554 100644
--- a/pychassisctl/chassis_control.py
+++ b/pychassisctl/chassis_control.py
@@ -104,19 +104,18 @@
                          in_signature='', out_signature='')
     def powerOff(self):
         print "Turn off power"
-
         intf = self.getInterface('systemd')
         f = getattr(intf, 'StartUnit')
-        f.call_async('obmc-host-stop@0.target', 'replace')
+        f.call_async('obmc-chassis-hard-poweroff@0.target', 'replace')
         return None
 
     @dbus.service.method(DBUS_NAME,
                          in_signature='', out_signature='')
     def softPowerOff(self):
         print "Soft off power"
-        intf = self.getInterface('host_services')
-        ## host services will call power off when ready
-        intf.SoftPowerOff()
+        intf = self.getInterface('systemd')
+        f = getattr(intf, 'StartUnit')
+        f.call_async('obmc-host-shutdown@0.target', 'replace')
         return None
 
     @dbus.service.method(DBUS_NAME,