Currently check_rx_saturated checks saturation on all rx antennas. This works well for ORS, which has only one SDR board, but won't work for multiRU case where we will need to check RX for saturation for each Radio Unit separately.

-> As a preparatory step adjust check_rx_saturated to take list of which RX antennas to check for saturation.

For now this change is accompanied by the following change in ors-amarisoft SR to keep it working as before:

--- a/software/ors-amarisoft/instance-enb.jinja2.cfg
+++ b/software/ors-amarisoft/instance-enb.jinja2.cfg
@@ -699,6 +699,7 @@ config-stats-period = {{ slapparameter_dict.get("enb_stats_fetch_period", 60) }}
 <= macro.promise
 promise = check_rx_saturated
 config-testing = {{ slapparameter_dict.get("testing", False) }}
+config-rf-rx-chan-list = {{ list(range(0, int(slapparameter_dict.get('n_antenna_ul', default_n_antenna_ul)))) }}
 config-amarisoft-stats-log = ${amarisoft-stats-template:log-output}
 config-stats-period = {{ slapparameter_dict.get("enb_stats_fetch_period", 60) }}
 config-max-rx-sample-db = {{ slapparameter_dict.get("max_rx_sample_db", 0) }}

(posted in slapos!1459 (merged))

/cc @jhuge, @lu.xu, @tomo, @xavier_thompson, @Daetalus