ip: RD-CP API incorrect reply code

Type: fix

Change-Id: Ie436d51999dc1384a0db492f28a7e66620e14551
Signed-off-by: Neale Ranns <nranns@cisco.com>
diff --git a/src/vnet/ip/rd_cp.c b/src/vnet/ip/rd_cp.c
index 2af24c0..f6cb674 100644
--- a/src/vnet/ip/rd_cp.c
+++ b/src/vnet/ip/rd_cp.c
@@ -643,7 +643,7 @@
 
   BAD_SW_IF_INDEX_LABEL;
 
-  REPLY_MACRO (VL_API_SW_INTERFACE_SET_TABLE_REPLY);
+  REPLY_MACRO (VL_API_IP6_ND_ADDRESS_AUTOCONFIG_REPLY);
 }
 
 #define vl_msg_name_crc_list