Add some missing errors to win_errno_sock

Change-Id: Id3e31bbf86ca12f22064db197147a4985146e2ae
Reviewed-on: http://review.couchbase.org/27874
Tested-by: Mark Nunberg <mnunberg@haskalah.org>
Reviewed-by: Sergey Avseyev <sergey.avseyev@gmail.com>