Episys/mel/pdcp socket update

See merge request aburger/openairinterface5g!25

More accurately, we changed the do/while infinite
loop to be an infinite for loop for the read command of
the socket. The socket file descriptor choice is more clear now.

Updated dropping packet mechanism for only c-rnti

See merge request aburger/openairinterface5g!24

There was a variable that was being used that was undefined.
Also fixed save_dci_pdu_for_crnti() function.

Sending ACK or NACK for uci_harq_ind fix

See merge request aburger/openairinterface5g!23

Also updated the spelling of global variable NUM_NFAPI_SUBFRAME

A fix had to be made in the uci_harq indication function
in the UE. The uci_harq indicaiton function was not properly
checking for dropped packets four subframes back in the UE.

Episys/oai home update

See merge request aburger/openairinterface5g!22

Episys/initial channel model

See merge request aburger/openairinterface5g!21

Updating for operation with Proxy

See merge request aburger/openairinterface5g!18

Adding ue id parameter to pdcp_init
Updating tun interface functions for proxy

Episys/mel/nfapi mode logic

See merge request aburger/openairinterface5g!19

Every if statement that includes a check for
the NFAPI_MODE that did not check for the new
PNF_STANDALONE_MODE now has been updated. Also
changed the tx_req and dl_config_req logs
when they are received at the OAI UE to be
info logs instead of error logs.

Based on issues discovered by Zaid

Select fair RR packet scheduler

See merge request aburger/openairinterface5g!16

Also fixed some build problems

See cmake_targets/gdb.txt for notes

Episys/andrew/fixing multiue config

See merge request aburger/openairinterface5g!15

Fixed multiple UE EPC integration by resetting user->ueid=0;. Lots of logs in this commit, will remove later

Log the processor info like scheduler policy

See merge request aburger/openairinterface5g!14

And CPU affinity.
Also, use mlockall to keep our memory from being swapped out.

Dl_config_req and tx_req filtering allowed for either order

See merge request aburger/openairinterface5g!13

Additionally, combined many of the individual
dl_config_req and tx_req handle functions.
Also removed some unused functions we added.
Futhermore, removed our additions to the
dl_config_req and tx_req memcpy functions.

Episys/andrew/dl config+tx req combination

See merge request aburger/openairinterface5g!12