RDMA/nes: Fix TCP compliance test failures

ANVL testing showed we are not handling all cm_node states during
connection establishment.  Add missing state handlers and fix sequence
number send reset in handle_tcp_options().

Signed-off-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: Chien Tung <chien.tin.tung@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>