[docker-syncd-brcm] Add 'startsecs=0' to ledinit process (#2366)

Author: jleveque

platform/broadcom/docker-syncd-brcm/supervisord.conf

@@ -32,5 +32,6 @@ command=/usr/bin/bcmcmd -t 60 "rcload /usr/share/sonic/platform/led_proc_init.so
 priority=4
 autostart=false
 autorestart=false
+startsecs=0
 stdout_logfile=syslog
 stderr_logfile=syslog