cpu/nrf52 radio: Populate info

According to ieee802154_radio_confirm_transmit docs, the parameter of
confirm_op for IEEE802154_HAL_OP_TRANSMIT is to be populated as an out
parameter -- but this implementation unconditionally left info
unpopulated. Thus, when run with LLVM, _fsm_state_tx_process_tx_done
looked into an uninitialized info and thus crashed into failing
assertions.

Closes: https://github.com/RIOT-OS/RIOT/issues/17591

cpu/nrf52/radio/nrf802154/nrf802154_radio.c

@@ -259,6 +259,7 @@ static int _confirm_op(ieee802154_dev_t *dev, ieee802154_hal_op_t op, void *ctx)
     int radio_state = NRF_RADIO->STATE;
     switch (op) {
     case IEEE802154_HAL_OP_TRANSMIT:
+        info = ctx;
         eagain = (state != STATE_IDLE
             && state != STATE_CCA_BUSY && NRF_RADIO->STATE != RADIO_STATE_STATE_Disabled);