NR UE: calculate TA based on SIB19 information in NTN mode, if autonomous TA is not enabled To achieve the goal, the hyper frame number (HFN) is introduced at the NR UE PHY, MAC and RRC layers. Besides this, we also implemented an orbit propagation to improve the accuracy of N_UE_TA_adj, and a fix to keep the N_TA from RAR and MAC CE. Fixes #981