Ipsec user script (/etc/ipsec.user) now get called indirectly by openwrt
"/sbin/hotplug-call". So other packages could also install their scripts
in "/etc/hotplug.d/ipsec".
Signed-off-by: Florian Eckert <fe@dev.tdt.de>
(cherry picked from commit 6cd8fcabe6)