soft-off: ensure ipmi soft off is run in correct seq

The flow of synchronization targets during a obmc-host-stop@.target is
the following:
obmc-host-stop-pre -> obmc-host-stopping -> obmc-host-stopped

The obmc-host-stop-pre is where we notify the host that a shutdown is
occurring and allow it to gracefully shut itself down. This is where
xyz.openbmc_project.Ipmi.Internal.SoftPowerOff.service should run.

Change-Id: If5080795043618abf3435816f62f14f9e1d751a9
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
diff --git a/recipes-phosphor/ipmi/phosphor-ipmi-host/xyz.openbmc_project.Ipmi.Internal.SoftPowerOff.service b/recipes-phosphor/ipmi/phosphor-ipmi-host/xyz.openbmc_project.Ipmi.Internal.SoftPowerOff.service
index ce4c561..a3222a9 100644
--- a/recipes-phosphor/ipmi/phosphor-ipmi-host/xyz.openbmc_project.Ipmi.Internal.SoftPowerOff.service
+++ b/recipes-phosphor/ipmi/phosphor-ipmi-host/xyz.openbmc_project.Ipmi.Internal.SoftPowerOff.service
@@ -2,8 +2,8 @@
 Description=Soft power off of the host
 Wants=mapper-wait@-org-openbmc-HostIpmi-1.service
 After=mapper-wait@-org-openbmc-HostIpmi-1.service
-Wants=obmc-host-stopping@0.target
-Before=obmc-host-stopping@0.target
+Wants=obmc-host-stop-pre@0.target
+Before=obmc-host-stop-pre@0.target
 Conflicts=obmc-host-start@0.target
 ConditionPathExists=!/run/openbmc/host@0-request
 ConditionPathExists=!/lib/systemd/system/pldmSoftPowerOff.service