build: Fix generation of virtproxyd socket files

The various virtproxyd socket files are generated with invalid syntax,
e.g. from virtproxyd.socket

[Unit]
Description=Libvirt proxy local socket
Before=virtproxyd.service
libvirtd.socket libvirtd-ro.socket libvirtd-admin.socket libvirtd-tcp.socket libvirtd-tls.socket

Note the missing 'Conflicts=' in the last line. Fix it by prepending
'Conflicts=' to libvirtd_socket_conflicts when adding virtproxyd
to virt_daemon_units.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>

src/remote/meson.build

@@ -230,7 +230,7 @@ if conf.has('WITH_REMOTE')
       'name': 'Libvirt proxy',
       'sockprefix': 'libvirt',
       'sockets': [ 'main', 'ro', 'admin', 'tcp', 'tls' ],
-      'deps': libvirtd_socket_conflicts,
+      'deps': 'Conflicts=' + libvirtd_socket_conflicts,
     }
 
     openrc_init_files += {