openl2tp: fix rpcbind status check in run-ptest

The final rpcbind check chained 'which systemctl && systemctl status ||
service rpcbind status', so on sysvinit images without systemctl it fell
back to 'service', which may not exist, and the tests were skipped even
though rpcbind was running. Check the status with the same init system
that was used to start it.

AI-Generated: Uses Claude Code
Signed-off-by: Khem Raj <khem.raj@oss.qualcomm.com>

meta-networking/recipes-protocols/openl2tp/openl2tp/run-ptest

@@ -43,11 +43,11 @@ zcat /proc/config.gz | grep CONFIG_PPPOL2TP=m > /dev/null || exit_cus "Failed to
 SYSV_INIT="/etc/init.d/rpcbind"
 if [ -e ${SYSV_INIT} ]; then
 	${SYSV_INIT} status > /dev/null || ${SYSV_INIT} start > /dev/null
+	${SYSV_INIT} status > /dev/null
 else
 	systemctl status rpcbind > /dev/null || systemctl start rpcbind > /dev/null
+	systemctl status rpcbind > /dev/null
 fi
-
-which systemctl > /dev/null && systemctl status rpcbind > /dev/null || service rpcbind status > /dev/null
 [ $? -ne 0 ] && exit_cus "Failed to start rpcbind service, skip the tests." 1
 
 # backup the below files