*HOTFIX: After develop/develop-nr merge UE was crashing with MBMS U-Plane traffic running

	-New MAC SDU integrity check in ue_procedures .c introduced for MCH channels.
	-This SDU behavior didn’t show up with former develop
	-TOCHECK whether NFAPI was properly merged on the eNB side.
	-eNB_scheduler_mch has been slightly rearranged.

	*BUGFIX:
	-In dlsch_demodulation.c  “ rxF_comp_d.m” was continuously being written to disk

	*New reference config file added (lte-fdd-mbms-basic-sim.conf) for rfsim environment

openair1/PHY/LTE_UE_TRANSPORT/dlsch_demodulation.c

@@ -547,10 +547,10 @@ int rx_pdsch(PHY_VARS_UE *ue,
                                pdsch_vars[eNB_id]->log2_maxh,
                                measurements); // log2_maxh+I0_shift
 
-    if (symbol == 5) {
-      LOG_M("rxF_comp_d.m","rxF_c_d",&pdsch_vars[eNB_id]->rxdataF_comp0[0][symbol*frame_parms->N_RB_DL*12],frame_parms->N_RB_DL*12,1,1);
-    }
-
+//    if (symbol == 5) {
+//      LOG_M("rxF_comp_d.m","rxF_c_d",&pdsch_vars[eNB_id]->rxdataF_comp0[0][symbol*frame_parms->N_RB_DL*12],frame_parms->N_RB_DL*12,1,1);
+//    }
+//
     if ((rx_type==rx_IC_single_stream) &&
         (eNB_id_i<ue->n_connected_eNB)) {
       dlsch_channel_compensation(pdsch_vars[eNB_id_i]->rxdataF_ext,

openair2/LAYER2/MAC/ue_procedures.c

@@ -746,6 +746,9 @@ ue_send_mch_sdu(module_id_t module_idP, uint8_t CC_id, frame_t frameP,
   LOG_D(MAC, "[UE %d] parse_mch_header, found %d sdus\n", module_idP,
         num_sdu);
 
+  if(sdu[0]==0 && sdu[1]==0)
+        num_sdu=0;
+
   for (i = 0; i < num_sdu; i++) {
     if (rx_lcids[i] == MCH_SCHDL_INFO) {
       if (rx_lengths[i] & 0x01) {