vpnor: updatesymlinks: Disable rate limiting

This service can be restarted multiple times in a row after a BMC reboot
due to its WantedBy dependencies, causing this service to fail with a
start-limit-hit systemd error because it exceeds the default burst
limit.
Disable the rate limiting to avoid this error since this service is
designed to be started as many times as required.

Tested: Restarted pldmd and mboxd multiple times and the start-limit-hit
error is not seeing anymore.

Change-Id: I437cc70d3cf70cd8d59d17b7cb2f4b8995a278c8
Signed-off-by: Adriana Kobylak <anoo@us.ibm.com>
diff --git a/vpnor/obmc-vpnor-updatesymlinks.service b/vpnor/obmc-vpnor-updatesymlinks.service
index 4bbf826..2a5a32f 100644
--- a/vpnor/obmc-vpnor-updatesymlinks.service
+++ b/vpnor/obmc-vpnor-updatesymlinks.service
@@ -8,6 +8,7 @@
 After=org.open_power.Software.Host.Updater.service
 After=phosphor-reset-chassis-running@0.service
 ConditionPathExists=!/run/openbmc/chassis@0-on
+StartLimitIntervalSec=0
 
 [Service]
 Type=oneshot