Adding memset of def_dci_pdu_rel15 back in

Removing the memset seemed to hide the problem
and now the problem is appearing in a differnt
manner... it is causing the NRUE to skip HARQ
PIDs as its filling the UCI indication and process
the DCI PDUs. So adding the memset causes the NR UE
to crash becasue the DL_BWP_ID is becoming 0
which leads us to index into an pointer that is not
allocated and then a crash happens in DCI handling.

openair2/LAYER2/NR_MAC_COMMON/nr_mac_extern.h

@@ -39,8 +39,6 @@
 
 extern const uint8_t nr_slots_per_frame[5];
 
-extern dci_pdu_rel15_t def_dci_pdu_rel15[8];
-
 /* extern const uint32_t BSR_TABLE[BSR_TABLE_SIZE];
 extern const uint32_t Extended_BSR_TABLE[BSR_TABLE_SIZE];
 extern const uint8_t cqi2fmt0_agg[MAX_SUPPORTED_BW][CQI_VALUE_RANGE];

openair2/LAYER2/NR_MAC_UE/mac_extern.h

@@ -66,8 +66,6 @@ extern const uint8_t table_7_3_2_3_3_4_twoCodeword[6][10];
 
 extern const uint16_t table_7_2_1[16];
 
-extern dci_pdu_rel15_t def_dci_pdu_rel15[8];
-
 extern void mac_rlc_data_ind(const module_id_t         module_idP,
                              const rnti_t              rntiP,
                              const eNB_index_t         eNB_index,

openair2/NR_UE_PHY_INTERFACE/NR_IF_Module.c

@@ -951,6 +951,7 @@ int nr_ue_dl_indication(nr_downlink_indication_t *dl_info, NR_UL_TIME_ALIGNMENT_
           fill_scheduled_response(&scheduled_response, dl_config, NULL, NULL, dl_info->module_id, dl_info->cc_id, dl_info->frame, dl_info->slot, dl_info->thread_id);
           nr_ue_if_module_inst[module_id]->scheduled_response(&scheduled_response);
         }
+        memset(def_dci_pdu_rel15, 0, sizeof(*def_dci_pdu_rel15));
       }
     }