lte-ue.c: Allocate bigger arrays

This code allocates memory from the heap:

```
static void *UE_phy_stub_standalone_pnf_task(void *arg)
{
...
  UL_INFO->crc_ind.crc_indication_body.crc_pdu_list =
  calloc(NB_UE_INST, sizeof(nfapi_crc_indication_pdu_t));
```

I see NB_UE_INST==1.

Then this code:

```
void fill_crc_indication_UE_MAC(int Mod_id,
                                int frame,
                                int subframe,
                                UL_IND_t *UL_INFO,
                                uint8_t crc_flag,
                                int index,
                                uint16_t rnti,
                                nfapi_ul_config_request_t
                                *ul_config_req) {
...
  nfapi_crc_indication_pdu_t *pdu =
      &UL_INFO->crc_ind.crc_indication_body
           .crc_pdu_list[UL_INFO->crc_ind.crc_indication_body.number_of_crcs];
```

used .number_of_crcs to index into .crc_pdu_list without first
checking if .number_of_crcs is in range.

When run with multiple UEs, sometimes .number_of_crcs==1 and then
-fsanitize=address complains.

Change is to use NUMBER_OF_UE_MAX instead of NB_UE_INST.

With this change, -fsanitize=address stopping complaining.

openair2/PHY_INTERFACE/phy_stub_UE.c

@@ -175,6 +175,7 @@ void fill_crc_indication_UE_MAC(int Mod_id,
   pthread_mutex_lock(&fill_ul_mutex.crc_mutex);
   LOG_D(MAC, "fill crc_indication num_crcs: %u\n",
         UL_INFO->crc_ind.crc_indication_body.number_of_crcs);
+  assert(UL_INFO->crc_ind.crc_indication_body.number_of_crcs < NUMBER_OF_UE_MAX);
   nfapi_crc_indication_pdu_t *pdu =
       &UL_INFO->crc_ind.crc_indication_body
            .crc_pdu_list[UL_INFO->crc_ind.crc_indication_body.number_of_crcs];