Adjust virtlockd sysconfig file to conform to SUSE standards

Index: libvirt-7.1.0/src/locking/virtlockd.sysconf
===================================================================
--- libvirt-7.1.0.orig/src/locking/virtlockd.sysconf
+++ libvirt-7.1.0/src/locking/virtlockd.sysconf
@@ -1,3 +1,7 @@
+## Path: System/Virtualization/virtlockd
+
+## Type: string
+## Default: ""
 # Customizations for the virtlockd.service systemd unit
 
 VIRTLOCKD_ARGS=""