Rework of GTPU in kernel (now use UDP socket, kthread for rx),

No need for GTPURH kernel module (work done in GTPUAH, will change module name later).
still classification with iptables mark, conntrack.
Tested with EPC local to eNB, test with remote EPC after this commit.

Added srb1 parameters in enb config file,

Correction of mscgen traces

git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7413 818b1a75-f10b-46b9-bf7c-635c3b92a50f