fix UE default configuration file

- fix OPc key
- clear EHPLMN_LIST, UE does not start the RA procedure when set
  to be fixed

openair3/NAS/TOOLS/ue_eurecom_test_sfr.conf

@@ -88,7 +88,7 @@ UE0:
     SIM: {
         MSIN="0100001111";
         USIM_API_K="fec86ba6eb707ed08905757b1bb44b8f";
-        OPC="00000000000000000000000000000000";
+        OPC="C42449363BBAD02B66D16BC975D77CC1";
         MSISDN="33611123456";
     };
 
@@ -108,5 +108,7 @@ UE0:
     FPLMN_LIST = ();
 
     # List of Equivalent HPLMNs
-    EHPLMN_LIST= ("20811", "20813");
+#TODO: UE does not connect if set, to be fixed in the UE
+#    EHPLMN_LIST= ("20811", "20813");
+    EHPLMN_LIST= ();
 };