compilation warnings fixes

The previous commit created two new warnings:

    warning: 'avgs' may be used uninitialized in this function
    warning: 'seq_index' may be used uninitialized in this function

This commit removes them.

Maybe it's not the correct solution. To be fixed if needed.

openair1/PHY/NR_TRANSPORT/nr_ulsch_demodulation.c

@@ -1174,7 +1174,7 @@ int nr_rx_pusch(PHY_VARS_gNB *gNB,
 
   uint8_t aarx, aatx;
   uint32_t nb_re_pusch, bwp_start_subcarrier;
-  int avgs;
+  int avgs = 0;
 
   NR_DL_FRAME_PARMS *frame_parms = &gNB->frame_parms;
   nfapi_nr_pusch_pdu_t *rel15_ul = &gNB->ulsch[ulsch_id][0]->harq_processes[harq_pid]->ulsch_pdu;

openair1/PHY/NR_TRANSPORT/pucch_rx.c

@@ -302,7 +302,7 @@ void nr_decode_pucch0(PHY_VARS_gNB *gNB,
   int32_t corr_re[1+frame_parms->nb_antennas_rx][2];
   int32_t corr_im[1+frame_parms->nb_antennas_rx][2];
   //int32_t no_corr = 0;
-  int seq_index;
+  int seq_index = 0;
   int64_t temp;
 
   for(i=0;i<nr_sequences;i++){