Chaging NR functions to be properly named

This commit removed all the linking errors
between the NR UE and the LTE UE. This was done by
changing:
-      rrc_data_req_ue
+      rrc_data_req_nr_ue

executables/ocp-gnb.c

@@ -331,7 +331,7 @@ static void init_pdcp(void) {
     pdcp_initmask = pdcp_initmask | ENB_NAS_USE_TUN_BIT | SOFTMODEM_NOKRNMOD_BIT  ;
   }
 
-  pdcp_module_init(pdcp_initmask, 0);
+  nr_pdcp_module_init(pdcp_initmask, 0);
   pdcp_set_rlc_data_req_func((send_rlc_data_req_func_t) rlc_data_req);
   pdcp_set_pdcp_data_ind_func((pdcp_data_ind_func_t) pdcp_data_ind);
 }