[TIPC] Avoid polluting the global namespace

This patch adds a tipc_ prefix to all externally visible symbols.

Signed-off-by: Per Liden <per.liden@ericsson.com>

net/tipc/user_reg.h

@@ -39,10 +39,10 @@
 
 #include "port.h"
 
-int reg_start(void);
-void reg_stop(void);
+int tipc_reg_start(void);
+void tipc_reg_stop(void);
 
-int reg_add_port(struct user_port *up_ptr);
-int reg_remove_port(struct user_port *up_ptr);
+int tipc_reg_add_port(struct user_port *up_ptr);
+int tipc_reg_remove_port(struct user_port *up_ptr);
 
 #endif