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/flash/openpower-software-manager/op-pnor-msl.service b/meta-openpower/recipes-phosphor/flash/openpower-software-manager/op-pnor-msl.service
index dfd9e3c..92c599e 100644
--- a/meta-openpower/recipes-phosphor/flash/openpower-software-manager/op-pnor-msl.service
+++ b/meta-openpower/recipes-phosphor/flash/openpower-software-manager/op-pnor-msl.service
@@ -6,6 +6,7 @@
 Type=oneshot
 ExecStart=/usr/bin/env openpower-pnor-msl
 SyslogIdentifier=openpower-pnor-msl
+RemainAfterExit=yes
 
 [Install]
 WantedBy=obmc-flash-bios-updatesymlinks.service