meta-romulus: Update power on sequence with new obmc-power-chassis targets

Change-Id: I12da1cd3d5514ff6c9deea1cef922686cdb39dc5
Signed-off-by: Lei YU <mine260309@gmail.com>
diff --git a/meta-romulus/recipes-phosphor/host/op-pdbg-host-control/vcs_workaround@.service b/meta-romulus/recipes-phosphor/host/op-pdbg-host-control/vcs_workaround@.service
index cf02d25..bc7e5a5 100644
--- a/meta-romulus/recipes-phosphor/host/op-pdbg-host-control/vcs_workaround@.service
+++ b/meta-romulus/recipes-phosphor/host/op-pdbg-host-control/vcs_workaround@.service
@@ -4,7 +4,7 @@
 Before=obmc-host-start-pre@%i.target
 Wants=avsbus-enable@%i.service
 After=avsbus-enable@%i.service
-Conflicts=obmc-chassis-stop@%i.target
+Conflicts=obmc-power-chassis-off@%i.target
 
 [Service]
 ExecStart={bindir}/vcs_workaround.sh {MACHINE}
@@ -12,4 +12,4 @@
 RemainAfterExit=yes
 
 [Install]
-WantedBy=obmc-chassis-start@%i.target
+WantedBy=obmc-power-chassis-on@%i.target