Update custom.properties

Signed-off-by: lsiepel <leosiepel@gmail.com>

Author: lsiepel

distributions/openhab/src/main/resources/userdata/etc/custom.properties

@@ -5,6 +5,8 @@ karaf.lock.dir=${karaf.data}/tmp
 karaf.shutdown.port.file=${karaf.data}/tmp/port
 karaf.pid.file=${karaf.data}/tmp/karaf.pid
 
+org.osgi.framework.system.packages.extra=${org.osgi.framework.system.packages.extra},sun.security.pkcs11
+
 osgi.compatibility.bootdelegation = true
 
 felix.fileinstall.dir = ${karaf.data}/etc