add warning about afbr spi comms

src/drivers/distance_sensor/broadcom/afbrs50/AFBRS50.cpp

@@ -281,7 +281,6 @@ void AFBRS50::Run()
 			status_t status = Argus_TriggerMeasurement(_hnd, measurementReadyCallback);
 
 			if (status != STATUS_OK) {
-				// PX4_ERR("Argus_TriggerMeasurement status not okay: %i", (int)status);
 				perf_count(_not_ready_perf);
 				// Reschedule another trigger
 				_state = STATE::TRIGGER;
@@ -305,6 +304,7 @@ void AFBRS50::Run()
 
 			if (elapsed > _measurement_inverval) {
 				ScheduleNow();
+
 			} else {
 				ScheduleDelayed(_measurement_inverval - elapsed);
 			}

src/drivers/distance_sensor/broadcom/afbrs50/API/Src/s2pi.cpp

@@ -70,6 +70,8 @@ private:
 };
 
 AFBRS50_SPI::AFBRS50_SPI():
+	// WARNING: SPI0 only exists for nxp and raspberry pi, so we hijack it here
+
 	// NOTE: we use SPI0 WQ since it is the 2nd highest priority thread (behind rate_ctrl).
 	// TODO: we should fix how SPI comms work. Async SPI comms is
 	// undesirable. We should use SPI TX DMA complete callback