changes for 2.5ms TDD period

executables/nr-ru.c

executables/nr-softmodem.c

openair1/PHY/defs_RU.h

openair2/ENB_APP/enb_paramdef.h

openair2/GNB_APP/MACRLC_nr_paramdef.h

openair2/GNB_APP/gnb_config.c

openair2/LAYER2/NR_MAC_gNB/config.c

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_RA.c

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_dlsch.c

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c

openair2/LAYER2/NR_MAC_gNB/nr_mac_gNB.h

openair2/LAYER2/nr_pdcp/nr_pdcp_oai_api.c

openair2/LAYER2/nr_rlc/nr_rlc_oai_api.c

openair2/RRC/NR/MESSAGES/asn1_msg.c

openair2/RRC/NR/nr_rrc_config.c