integration fix: let oaisim (S1) work again
- some cleanup - thread names to include UE Mod_id - arg of UE_thread_rxn_txnp4 to be struct rx_tx_thread_data again - sync in UE_thread_rxn_txnp4 to use instance_cnt_rxtx again - UE_thread to call itti_send_msg_to_task with UE->Mod_id + NB_eNB_INST instead of INSTANCE_DEFAULT again This may break the softmodem UE, to be tested. The most problematic thing may be the synchronization. I don't think it will impact the processing at all, but I won't bet my shirt on it.
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