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.

(From meta-openpower rev: b246b509da91db98ebc326afda0d68827ef2b5f9)

Change-Id: I56b2b975f20aa42ed43c8b1bd185ee49ecba2eb9
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-openpower/recipes-phosphor/vpd/openpower-fru-vpd/op-vpd-parser.service b/meta-openpower/recipes-phosphor/vpd/openpower-fru-vpd/op-vpd-parser.service
index 6eadebf..8238691 100644
--- a/meta-openpower/recipes-phosphor/vpd/openpower-fru-vpd/op-vpd-parser.service
+++ b/meta-openpower/recipes-phosphor/vpd/openpower-fru-vpd/op-vpd-parser.service
@@ -10,3 +10,4 @@
 EnvironmentFile={envfiledir}/obmc/inventory
 ExecStart=/usr/bin/env openpower-read-vpd --vpd $EEPROM --fru $FRUS --object $PATHS
 SyslogIdentifier=openpower-read-vpd
+RemainAfterExit=yes