move all services s/obmc-standby/multi-user/g

Transition all the services away from the custom obmc-standby service to
the default multi-user target.

Signed-off-by: Patrick Venture <venture@google.com>
Change-Id: Icc5cd0eb0767318f27fd8d568818659a50bbd987
diff --git a/power-control/service-files/obmc-host-stop@.target b/power-control/service-files/obmc-host-stop@.target
index 5178e83..6a91c74 100644
--- a/power-control/service-files/obmc-host-stop@.target
+++ b/power-control/service-files/obmc-host-stop@.target
@@ -1,7 +1,7 @@
 [Unit]
 Description=Stop Host%i
-Wants=obmc-standby.target
-After=obmc-standby.target
+Wants=multi-user.target
+After=multi-user.target
 Wants=mapper-wait@-xyz-openbmc_project-Chassis-Control-Power%i.service
 After=mapper-wait@-xyz-openbmc_project-Chassis-Control-Power%i.service
 Conflicts=obmc-host-startmin@%i.target