ath10k_download_cal_dt
ret = ath10k_download_cal_dt(ar, "qcom,pre-calibration-data");
ret = ath10k_download_cal_dt(ar, "qcom,ath10k-pre-calibration-data");
ret = ath10k_download_cal_dt(ar, "qcom,calibration-data");
ret = ath10k_download_cal_dt(ar, "qcom,ath10k-calibration-data");