vty: cosmetic: use VTY_IPV4_CMD in 'bind-ip' / 'remote-ip'

Change-Id: I8e44f771cbd03629c066bc24c3186997761f93f1
diff --git a/CommonLibs/trx_vty.c b/CommonLibs/trx_vty.c
index 57b9fe2..54db54b 100644
--- a/CommonLibs/trx_vty.c
+++ b/CommonLibs/trx_vty.c
@@ -112,7 +112,7 @@
 }
 
 DEFUN(cfg_bind_ip, cfg_bind_ip_cmd,
-	"bind-ip A.B.C.D",
+	"bind-ip " VTY_IPV4_CMD,
 	"Set the IP address for the local bind\n"
 	"IPv4 Address\n")
 {
@@ -124,7 +124,7 @@
 }
 
 DEFUN(cfg_remote_ip, cfg_remote_ip_cmd,
-	"remote-ip A.B.C.D",
+	"remote-ip " VTY_IPV4_CMD,
 	"Set the IP address for the remote BTS\n"
 	"IPv4 Address\n")
 {