Add the PCO so that MME allocates the IP address
accordingly. The protocol ID known as "IP address
allocation via NAS signalling" is assigned.

Otherwise, the OAI UE will always has IP address
set to 0.0.0.0

This has tested with OAI eNB with S1 interface using
OAI EPC.

Reference:
http://www.sharetechnote.com/html/Handbook_LTE_ProtocolConfigurationOption.html



This patch is merged with Cedric's patch and tested.

Signed-off-by: Chun-Yeow Yeoh <yeow@tmrnd.com.my>
Signed-off-by: Cedric Roux <Cedric.Roux@eurecom.fr>

changes in BSR handling in eNodeB. UL throughput on 5 MHz is 8 Mbit/s (mcs 19, 20 PRB). MCS 20 is not working for an unknown reason.

modifications in UE NAS to allow OAI UE to connect to. Note this is hard-coded in NAS, it will no longer work with openairCN.  To be fixed before merging into develop branch
.

git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7887 818b1a75-f10b-46b9-bf7c-635c3b92a50f

git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7886 818b1a75-f10b-46b9-bf7c-635c3b92a50f