remove ubsan from ziggurat random generator for speed and because it detects abs(MIN_INT32) cant be computed

integration_2023_w15

See merge request oai/openairinterface5g!2057

* !1977 UL-MMSE
* !2021 Remove globals demodulator
* !2025 NR UE implementation of PUCCH multiplexing procedures
* !2049 reworking UE function to get max transmitted power
* !2034 Compiling CLANG warning free
* !2043 Refactor radio-related RRC parameters and further cleanup

NGAP_MAX_PDU_SESSION is 256, and ue->nb_of_pdusessions is uint8_t,
so comparison is always true and we can simply drop it.

fill_default_secondaryCellGroup() is moved to nr_rrc_config.c.
Furthermore, the signature is changes to return the NR_CellGroupConfig
from the functions, instead of filling a pre-allocated structure (which
is, in all cases, allocated just before calling
fill_default_secondaryCellGroup().

There is a problem with this function: the function also fills the
ServingCellConfig (a parameter to this function). This behavior has not
been changed.

nr_DRB_preconfiguration() does a "pre-configuration" for the default DRB
for "noS1" mode, i.e., when there is no connection to core network. In
this case, there is no PDU session to be set up, and hence we need to
preconfigure the DRBs.

We replace this function with partially existing functions and a new
function fill_nr_noS1_bearer_config() which returns a bearer
configuration for the noS1 case, also better reflected in the function
name. It has also been moved to asn1_msg.c, away from the actual PDCP
layer.

For nr_DRB_preconfiguration() and fill_default_secondaryCellGroup(),
there is duplicated code to generate and RLC-BearerConfig, when calling
the existing get_DRB_RLC_BearerConfig() (with the right parameters)
yields a similar configuration (see exceptions below).

Differences:
- We do not support reestablishmentRLC, so we don't set it
- Set prioritisedBitrate to 8kbps instead of infinity (we don't
  prioritize anything, anyway)
- bucketSizeDuration is 50ms instead of 100ms