bridge: mdb: allow the user to delete mdb entry if there's a querier
bridge: mdb: allow the user to delete mdb entry if there's a querier

Until now when a querier was present static entries couldn't be deleted.
Fix this and allow the user to manipulate the mdb with or without a
querier.

Signed-off-by: Satish Ashok <bb50ad5a268d85ca96e1cf86d58f9090be9a10f4@cumulusnetworks.com>
Signed-off-by: Nikolay Aleksandrov <262b42b771725e3ebec40395f2b058e593df7462@cumulusnetworks.com>
Signed-off-by: David S. Miller <fe08d3c717adf2ae63592e4c9aec6e3e404d8e3e@davemloft.net>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs