fix compilation of ue_ip kernel module

May not be the best solution. Maybe we can pass -DXX=XX
on the command line somehow.

openair2/NETWORK_DRIVER/UE_IP/local.h

@@ -57,6 +57,7 @@
 #include "platform_types.h"
 #include "sap.h"
 
+#define MAKE_VERSION(a,b,c) ((a)*256+(b)*16+(c))
 
 typedef struct ue_ip_priv_s {
   int                        irq;