rtpengine: bump to LTS version 9.5.1.3

rtpengine: bump to LTS version 9.5.1.3

This

 - updates the dependencies
 - makes rtpengine use spandsp3 (it supports this version now)
 - fixes /etc/modules.d/ipt-rtpengine (needs user and group ids instead
   of names)
 - adds user as well when kmod is installed so that abovementioned user
   and group ids are available
 - adds /etc/modules.d/ipt-rtpengine to conffiles
 - removes 01-cflags.patch since upstream fixed the flag handling
 - removes 200-openssl-deprecated.patch as it was integrated upstream

Signed-off-by: Sebastian Kemper <sebastian_ml@gmx.net>