ofproto: correct typo

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
sw test tool: add test report output

Add following reports to the output of a switch test tool.
This report outputs the test item of each error type, and the number of errors.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
of14: Document OFPRR_{METER_DELETE, EVICTION} reasons for flow removed message

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>