Limit statistics of UE to configurable threshold

The gNB will stop the periodical logging of UEs in MAC Info level after
a configurable number of UEs have been printed, by default 8.

Set it to 17 in some CI tests to ensure we still get all UEs for the
time being, as the CI might depend on this.

ci-scripts/conf_files/gnb.sa.band78.106prb.rfsim.yaml

@@ -146,6 +146,7 @@ MACRLCs:
     tr_n_preference: local_RRC
     pusch_TargetSNRx10: 200
     pucch_TargetSNRx10: 200
+    stats_max_ue: 17
 
 L1s:
   - num_cc: 1

ci-scripts/conf_files/gnb.sa.band78.51prb.aw2s.ddsuu.conf

@@ -186,6 +186,7 @@ MACRLCs = (
     tr_n_preference  = "local_RRC";
     pusch_TargetSNRx10 = 200;
     pucch_TargetSNRx10 = 200;
+    stats_max_ue = 17;
   }
 );