In some FW versions, RoCE driver also receives an async notification which
was directed to L2 driver.  RoCE driver does not handle this and print a
message to syslog.  Drop these notifications silently.
Signed-off-by: NDevesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: NSelvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>