coll/han/alltoallv: Correct swapped send/recv datatype

Author: lrbison

ompi/mca/coll/han/coll_han_alltoallv.c

@@ -787,8 +787,8 @@ int mca_coll_han_alltoallv_using_smsc(
             peers[jrank].counts = (struct peer_counts *)serialization_buf;
             peers[jrank].sbuf   = sbuf;
             peers[jrank].rbuf   = rbuf;
-            peers[jrank].recvtype = &sdtype->super;
-            peers[jrank].sendtype = &rdtype->super;
+            peers[jrank].recvtype = &rdtype->super;
+            peers[jrank].sendtype = &sdtype->super;
             peers[jrank].map_ctx[0] = NULL;
             peers[jrank].map_ctx[1] = NULL;
             peers[jrank].map_ctx[2] = NULL;