Merge branch 'ue_slot0_slot1_parallelization_bis' into develop_integration_w30

openair1/PHY/LTE_TRANSPORT/dci_tools.c

openair1/PHY/LTE_TRANSPORT/dlsch_demodulation.c

openair1/PHY/LTE_TRANSPORT/dlsch_llr_computation.c

openair1/PHY/LTE_TRANSPORT/initial_sync.c

openair1/PHY/LTE_TRANSPORT/proto.h

openair1/PHY/MODULATION/defs.h

openair1/PHY/MODULATION/slot_fep.c

openair1/PHY/defs.h

openair1/PHY/impl_defs_lte.h

openair1/SCHED/defs.h

openair1/SCHED/phy_procedures_lte_ue.c

targets/COMMON/threads_t.h

targets/RT/USER/lte-softmodem.c

targets/RT/USER/lte-softmodem.h

targets/RT/USER/lte-ue.c

targets/SIMU/USER/oaisim.c