Merge branch 'nr-polar-encoder-optimizations' of https://gitlab.eurecom.fr/oai/openairinterface5g into nr-polar-encoder-optimizations

Conflicts:
	openair1/PHY/CODING/TESTBENCH/polartest.c
	openair1/PHY/CODING/nrPolar_tools/nr_polar_encoder.c
	openair1/PHY/CODING/nr_compute_tbs.c
	openair1/PHY/CODING/nr_segmentation.c
	openair1/PHY/INIT/nr_parms.c
	openair1/PHY/NR_TRANSPORT/nr_pbch.c