Revert build for ITTI_SIM OR RFSIM_NAS in CMakeLists

cmake_targets/CMakeLists.txt

@@ -2565,7 +2565,7 @@ if(NAS_UE)
 endif()
 
 
-#if(ITTI_SIM OR RFSIM_NAS)
+if(ITTI_SIM OR RFSIM_NAS)
   set(libnas_ue_api_OBJS
     ${NAS_SRC}UE/API/USER/at_command.c
     ${NAS_SRC}UE/API/USER/at_error.c
@@ -2691,7 +2691,7 @@ endif()
   include_directories(${NAS_SRC}UE/EMM/SAP)
   include_directories(${NAS_SRC}UE/ESM)
   include_directories(${NAS_SRC}UE/ESM/SAP)
-#endif()
+endif()
 
 # nbiot
 add_definitions("-DNUMBER_OF_UE_MAX_NB_IoT=16")