assert() statements were enabled for C code but disabled for C++
code.  With this commit, assert() is enabled for both C and C++
for RelWithDebInfo builds.

With a small number of runs with 16 UEs, I've seen this
AssertFatal fail twice.

There are many other places in the code that simply skip over
ulsch[i] values that are NULL.

CI: try to optimize the file system usage when building in the CI VM env. Increased the VM memory of one to allow linking
Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

Merge branch 'episys-merge' of https://gitlab.eurecom.fr/oai/openairinterface5g into eurecom-episys-merge

CI: removing 1 VM in the pipeline

See merge request oai/openairinterface5g!1078

Commented out an abort(); used for debugging.
An incoming merge request will properly handle
the issue of multiple CQIs.

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

Signed-off-by: Raphael Defosseux <raphael.defosseux@eurecom.fr>

These cppcheck errors are occuring in code
that is untouched by this merge request.

MR1029 : Benetel driver update  
This MR fixes an issue with the driver for the 4G Benetel RRUs.
Power levels on the 5G side were adapted to avoid saturation of the signals. 
5G performance is now the same as with USRP. 
Support for 2 antennas for both 4G and 5G was added

MR1062 : fixing the RE offset for each Rx antenna in pusch channel estimation

To enable -fsanitize=address option to the compiler
which enables run-time checks for some kinds of memory
mismanagement.

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.

-fsanitize=address complained about this code.

-fsanitize=address detected that we were trying to access bytes
past the end of a block of malloc'ed memory.

Specifically, in this code:

```
    } else if (ENB_NAS_USE_TUN) {
      if( LOG_DEBUGFLAG(DEBUG_PDCP) )
        log_dump(PDCP, pdcpData, sizeToWrite, LOG_DUMP_CHAR,"PDCP
      output to be sent to TUN interface: \n");
      ret = write(nas_sock_fd[0], pdcpData, sizeToWrite);
```

-fsanitize=address said:

```
==80==ERROR: AddressSanitizer: heap-buffer-overflow on address
0x61100004ffdc at pc 0x7f57c5f576a5 bp 0x7f57bb53c240 sp
0x7f57bb53b9e8
READ of size 108 at 0x61100004ffdc thread T7

0x61100004ffdc is located 0 bytes to the right of 220-byte region
[0x61100004ff00,0x61100004ffdc)
```

So, the code was trying to access the first byte after a block of
heap memory.

sizeToWrite was calculated like this:

```
    int sizeToWrite= sizeof (pdcp_data_ind_header_t) +
      pdcpHead->data_size;
```

There were a few other similar invocations of write() in the same
function used the wrong size.  That sizeToWrite calculation
should be used only when the header is being sent, too, which
happens in only one place in this function.

With this commit, our tests pass and -fsanitize=address is happy.

Found by -fsanitize=address

The global mbms_rab_id was defined as `uint16_t` in
eNB_scheduler_mch.c but `int` in other places.  So, code that
wrotes this global would clobber the two bytes that follow the
variable in memory.

Found by `-fsanitize=address`.

Found by `-fsanitize=address`.

In phy_free_lte_eNB in lte_init.c, the lte-uesoftmodem would
crash during shutdown because it was dereferencing null pointers.
This commit adds checks to avoid that.