meta-ibm: update service files in accordance with recent refactoring

As noted in the following mailing list thread:
https://lists.ozlabs.org/pipermail/openbmc/2022-November/032457.html

and implemented via this series of commits:
https://gerrit.openbmc.org/q/topic:op-power-control-ref

Some systemd services had their names changed. Update the service files
in this repo to reflect this.

Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
Change-Id: Idaca9c1a46f8b5d673b4912e3027fc9268aa5dba
diff --git a/meta-ibm/recipes-phosphor/power/phosphor-power/witherspoon/pseq-monitor-pgood.service b/meta-ibm/recipes-phosphor/power/phosphor-power/witherspoon/pseq-monitor-pgood.service
index 412b8b2..63832fc 100644
--- a/meta-ibm/recipes-phosphor/power/phosphor-power/witherspoon/pseq-monitor-pgood.service
+++ b/meta-ibm/recipes-phosphor/power/phosphor-power/witherspoon/pseq-monitor-pgood.service
@@ -1,7 +1,7 @@
 [Unit]
 Description=Power Sequencer Power-on Monitor
-Wants=op-power-start@0.service
-After=op-power-start@0.service
+Wants=obmc-power-start@0.service
+After=obmc-power-start@0.service
 Wants=power-workarounds@0.service
 After=power-workarounds@0.service
 Conflicts=obmc-chassis-poweroff@0.target