NSA-2x2 test: improve gNB configuration

ci-scripts/conf_files/gnb.band78.nsa_2x2.106PRB.usrpn310.conf

@@ -199,12 +199,12 @@ gNBs =
 );
 
 MACRLCs = (
-	{
-	num_cc = 1;
-	tr_s_preference = "local_L1";
-	tr_n_preference = "local_RRC";
-	ulsch_max_frame_inactivity = 1;
-        }  
+{
+  num_cc                     = 1;
+  tr_s_preference            = "local_L1";
+  tr_n_preference            = "local_RRC";
+  ulsch_max_frame_inactivity = 0;
+}
 );
 
 L1s = (
@@ -213,6 +213,7 @@ L1s = (
   tr_n_preference = "local_mac";
   thread_pool_size = 8;
   prach_dtx_threshold = 120;
+  pucch0_dtx_threshold = 80;
 }
 );