debugging of IF4p5 RRU

openair1/PHY/LTE_TRANSPORT/if4_tools.c

openair1/PHY/LTE_TRANSPORT/prach.c

openair1/PHY/defs.h

openair1/PHY/vars.h

openair1/SCHED/phy_procedures_lte_eNb.c

targets/ARCH/ETHERNET/USERSPACE/LIB/eth_raw.c

targets/ARCH/ETHERNET/USERSPACE/LIB/ethernet_lib.c

targets/RT/USER/lte-enb.c

targets/RT/USER/lte-softmodem.c

targets/SIMU/USER/init_lte.c