bladerf: have it functional (lte only, no nr)

At Eurecom now we only have Nuand bladeRF 2.0 (bladerf2) and those
calibration calls fail, so let's remove them. Maybe they are needed
for other boards, but we can't test at Eurecom. In case of problems
with other boards, contact us.

radio/BLADERF/USERSPACE/LIB/bladerf_lib.c

@@ -1115,6 +1115,12 @@ int device_init(openair0_device *device,
 
     // calibrate
 
+#if 0
+    /* those calls fail for "Nuand bladeRF 2.0 (bladerf2)", so commented,
+     * but let's keep the code in case it's needed (for other boards,
+     * for anything, unfortunately we don't have other boards to test
+     * right now)
+     */
     if ((status=bladerf_calibrate_dc(brf->dev, BLADERF_DC_CAL_LPF_TUNING)) != 0 ||
             (status=bladerf_calibrate_dc(brf->dev, BLADERF_DC_CAL_TX_LPF)) != 0 ||
             (status=bladerf_calibrate_dc(brf->dev, BLADERF_DC_CAL_RX_LPF)) != 0 ||
@@ -1123,6 +1129,7 @@ int device_init(openair0_device *device,
         brf_error(status);
     } else
         printf("[BRF] calibration OK\n");
+#endif
 
     bladerf_log_set_verbosity(get_brf_log_level(openair0_cfg->log_level));