ofp-errors: Use EXT-444 extension error codes for properties in OF1.3.

These error codes are proposed in the ONF extensibility working group as an
OpenFlow 1.3 extension.

Error codes are also proposed for the other three "bad property" error
codes, but those already have standardized OpenFlow 1.3 error codes and the
proposal says that implementations should use the standard ones.

ONF-JIRA: EXT-444.
Signed-off-by: Ben Pfaff <blp@nicira.com>