package/stunnel: add SELinux refpolicy module

SELinux support for stunnel is added by the services/stunnel refpolicy
module.

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/stunnel/stunnel.mk

@@ -16,6 +16,7 @@ STUNNEL_CONF_ENV = \
 STUNNEL_LICENSE = GPL-2.0+
 STUNNEL_LICENSE_FILES = COPYING.md COPYRIGHT.md
 STUNNEL_CPE_ID_VENDOR = stunnel
+STUNNEL_SELINUX_MODULES = stunnel
 
 ifeq ($(BR2_INIT_SYSTEMD),y)
 STUNNEL_DEPENDENCIES += systemd