oneshot services should only be run once

Still chasing root cause of openbmc/openbmc#3466 but either way, these
services should be configured to only ever run once. They do one-time
things and do not make sense to be run multiple times.

Change-Id: I8549c4875ba2eef0a274517ba12b3f5703b00cee
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
diff --git a/recipes-phosphor/chassis/obmc-mgr-inventory/obmc-sync-inventory-item@.service b/recipes-phosphor/chassis/obmc-mgr-inventory/obmc-sync-inventory-item@.service
index 0e294a1..784df40 100644
--- a/recipes-phosphor/chassis/obmc-mgr-inventory/obmc-sync-inventory-item@.service
+++ b/recipes-phosphor/chassis/obmc-mgr-inventory/obmc-sync-inventory-item@.service
@@ -7,6 +7,7 @@
 EnvironmentFile={envfiledir}/obmc/sync_inventory_item/%I
 ExecStart=/usr/bin/env sync_inventory_items.py -p ${{PROPERTY}} -s $SYNC_TYPE
 SyslogIdentifier=sync_inventory_items.py
+RemainAfterExit=yes
 
 [Install]
 WantedBy={SYSTEMD_DEFAULT_TARGET}