addition of MPDCCH format 5. X_u_br sequences for BL/CE UE support and bugfixes in rx_prach0 for eMTC.

complete programming of Msg2/Msg4 procedures for eMTC. Addition of skeleton for PUCCH UCI (NFAPI) in L1. Some cleanup of eNB_scheduler.c

fixes for RRU/RAU function after changes for monolithic eNB (some things during init were broken for RRU)

L1/L2 scheduling extensions for BL/CE operation, BR random-access procedure, BR PRACH detection. Still untested, but compilation succeeds. Missing elements in L2 - PUSCH programming for Msg3, Msg4 retransmission programming for BL/CE. DLSCH/ULSCH programming for UE-specific DLSCH/ULSCH for BL/CE

Note: this commit is work in progress. Contains initial integration of NFAPI data structures which are tested for TX path. RX path to follow.

Conflicts:
	openair1/PHY/INIT/lte_init.c
	openair1/PHY/LTE_ESTIMATION/lte_ul_channel_estimation.c
	openair1/PHY/LTE_TRANSPORT/dci.c
	openair1/PHY/LTE_TRANSPORT/dci_tools.c
	openair1/PHY/LTE_TRANSPORT/dlsch_coding.c
	openair1/PHY/LTE_TRANSPORT/dlsch_decoding.c
	openair1/PHY/LTE_TRANSPORT/dlsch_demodulation.c
	openair1/PHY/LTE_TRANSPORT/dlsch_llr_computation.c
	openair1/PHY/LTE_TRANSPORT/dlsch_modulation.c
	openair1/PHY/LTE_TRANSPORT/if4_tools.c
	openair1/PHY/LTE_TRANSPORT/if5_tools.c
	openair1/PHY/LTE_TRANSPORT/if5_tools.h
	openair1/PHY/LTE_TRANSPORT/pcfich.c
	openair1/PHY/LTE_TRANSPORT/phich.c
	openair1/PHY/LTE_TRANSPORT/prach.c
	openair1/PHY/LTE_TRANSPORT/rar_tools.c
	openair1/PHY/LTE_TRANSPORT/srs_modulation.c
	openair1/PHY/defs.h
	openair1/PHY/impl_defs_lte.h
	openair1/PHY/impl_defs_top.h
	openair1/SCHED/phy_procedures_lte_eNb.c
	openair1/SCHED/phy_procedures_lte_ue.c
	openair2/COMMON/mac_rrc_primitives.h
	openair2/ENB_APP/enb_config.c
	openair2/ENB_APP/enb_config.h
	openair2/LAYER2/MAC/config.c
	openair2/LAYER2/MAC/eNB_scheduler.c
	openair2/LAYER2/MAC/eNB_scheduler_dlsch.c
	openair2/LAYER2/MAC/eNB_scheduler_mch.c
	openair2/LAYER2/MAC/eNB_scheduler_primitives.c
	openair2/LAYER2/MAC/main.c
	openair2/LAYER2/MAC/proto.h
	openair2/RRC/LITE/MESSAGES/asn1_msg.c
	openair2/RRC/LITE/MESSAGES/asn1_msg.h
	openair2/RRC/LITE/rrc_UE.c
	openair2/RRC/LITE/rrc_common.c
	openair2/RRC/LITE/rrc_eNB.c
	targets/ARCH/COMMON/common_lib.c
	targets/ARCH/COMMON/common_lib.h
	targets/ARCH/ETHERNET/USERSPACE/LIB/eth_raw.c
	targets/ARCH/ETHERNET/USERSPACE/LIB/eth_udp.c
	targets/ARCH/ETHERNET/USERSPACE/LIB/ethernet_lib.c
	targets/ARCH/ETHERNET/USERSPACE/LIB/ethernet_lib.h
	targets/ARCH/ETHERNET/USERSPACE/LIB/if_defs.h
	targets/ARCH/LMSSDR/USERSPACE/LIB/lms_lib.cpp
	targets/PROJECTS/GENERIC-LTE-EPC/CONF/rcc.band7.tm1.if4p5.25PRB.lo.conf
	targets/PROJECTS/GENERIC-LTE-EPC/CONF/rcc.band7.tm1.if4p5.50PRB.lo.conf
	targets/PROJECTS/GENERIC-LTE-EPC/CONF/rru.band7.tm1.if4p5.25PRB.oaisim.conf
	targets/RT/USER/lte-enb.c
	targets/RT/USER/lte-softmodem.c
	targets/RT/USER/lte-ue.c
	targets/RT/USER/rt_wrapper.h
	targets/SIMU/USER/channel_sim.c
	targets/SIMU/USER/init_lte.c
	targets/SIMU/USER/oaisim.c
	targets/SIMU/USER/oaisim_functions.c

develop_integration_w20 into develop

Summary of changes:
- bug fixes
  * UE TDD fixes
  * PDCCH size computation (at phy level, still to be corrected at mac level)
  * DAI increment
  * fix run_enb_ue_virt_noS1 and run_enb_ue_virt_s1 to use Rel14 and
     have --xforms to work
  * compilation warning removals
  * better oaisim logging (print UE security keys,
    print version (git commit ID) at runtime, print working directory)

See merge request !190

Problems reported by Jorge Muñoz Castañer <jorgem@gti.uvigo.es>.

- use Rel14 binaries (those are produced by default)
- let -x option work to have graphical output
- fix VCD missing 'echo'

we can compute CCE_max_used_index out of the loop.