odp-util: Parse SCTP correctly.

We should be looking at 'src_flow' instead of 'flow'. Otherwise,
parsing SCTP through odp_flow_key_to_mask will fail.

Signed-off-by: Gurucharan Shetty <gshetty@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
datapath: Use flow hash during flow lookup operation.

Flow->hash can be used to detect hash collisions and avoid flow key
compare in flow lookup.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>