Improve LTE-2x2 radio behavior

ci-scripts/conf_files/enb.band38.lte_2x2.100prb.usrpn310.conf

@@ -211,8 +211,8 @@ MACRLCs = (
         bler_target_upper = 20.0;
         bler_target_lower = 10.0;
         max_ul_rb_index   = 27;
-        puSch10xSnr     =  190;
-        puCch10xSnr     =  160;
+        puSch10xSnr     =  250;
+        puCch10xSnr     =  230;
         }  
 );
 
@@ -231,8 +231,8 @@ RUs = (
        local_rf       = "yes"
          nb_tx          = 2
          nb_rx          = 2
-         att_tx         = 10
-         att_rx         = 5;
+         att_tx         = 12
+         att_rx         = 0;
          bands          = [38];
          max_pdschReferenceSignalPower = -27;
          max_rxgain                    = 75;

ci-scripts/conf_files/enb.band38.lte_2x2_tm2.100prb.usrpn310.conf

@@ -211,8 +211,8 @@ MACRLCs = (
         bler_target_upper = 20.0;
         bler_target_lower = 10.0;
         max_ul_rb_index   = 27;
-        puSch10xSnr     =  190;
-        puCch10xSnr     =  160;
+        puSch10xSnr     =  280;
+        puCch10xSnr     =  250;
         }  
 );
 
@@ -231,8 +231,8 @@ RUs = (
        local_rf       = "yes"
          nb_tx          = 2
          nb_rx          = 2
-         att_tx         = 10
-         att_rx         = 5;
+         att_tx         = 18
+         att_rx         = 0;
          bands          = [38];
          max_pdschReferenceSignalPower = -27;
          max_rxgain                    = 75;