bugfixes for the ue T tracer

Not much major changes. In openair1/PHY/LTE_UE_TRANSPORT/dci_tools_ue.c,
in the function generate_ue_dlsch_params_from_dci,
'harq_pid' was removed and dci_info_extarcted.harq_pid is now used for
all cases.

The ue T tracer only deals with PHY signals (no MAC, RLC, PDCP, RRC).