Common form of fib-path reproting in dumps

Change-Id: I8f6fdbbeef2ac7e9fe5d87490ae5cba6e9a0b294
Signed-off-by: Neale Ranns <nranns@cisco.com>
diff --git a/src/vnet/fib/fib_entry.h b/src/vnet/fib/fib_entry.h
index 3fde97a..4e88314 100644
--- a/src/vnet/fib/fib_entry.h
+++ b/src/vnet/fib/fib_entry.h
@@ -161,6 +161,7 @@
     [FIB_SOURCE_MPLS] = "mpls",           	        \
     [FIB_SOURCE_URPF_EXEMPT] = "urpf-exempt",	        \
     [FIB_SOURCE_DEFAULT_ROUTE] = "default-route",	\
+    [FIB_SOURCE_PLUGIN_HI] = "plugin-hi",               \
 }
 
 #define FOR_EACH_FIB_SOURCE(_item) \