zebra: re-sync protodown state when a port/mbr is linked to an ES-bond

zebra: re-sync protodown state when a port/mbr is linked to an ES-bond

The code for this was already there but was not kicking in because of a
zebra local reason-code dup check. Even if the reason-code is the same,
if the dplane and zebra disagree about the protodown state zebra will
need to re-program the dplane.

Fixed a couple of spelling errors in the protodown logs to make greps
easy.

Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com>