fib: fix some typos in fib/mtrie

Type: fix

Change-Id: I1af0e4a9bc23a3b6b6d3a74df093801ab6cae1f8
Signed-off-by: Lijian Zhang <Lijian.Zhang@arm.com>
diff --git a/src/vnet/dpo/load_balance.c b/src/vnet/dpo/load_balance.c
index f244498..7acccca 100644
--- a/src/vnet/dpo/load_balance.c
+++ b/src/vnet/dpo/load_balance.c
@@ -449,7 +449,7 @@
                 /*
                  * when the weight skew is high (norm is small) and n == nf.
                  * without this correction the path with a low weight would have
-                 * no represenation in the load-balanace - don't want that.
+                 * no representation in the load-balanace - don't want that.
                  * If the weight skew is high so the load-balance has many buckets
                  * to allow it. pays ya money takes ya choice.
                  */