qed: Uniform IOV queue validation

qed: Uniform IOV queue validation

Orabug: 25933053, 26439680

PF needs to validate the status of VF queues before asking firmware
to configure anything for them, but that validation is done in various
different forms - sometimes inadequate.

Add auxillary functions that can be used for testing of the queue
state and convert the various flows to use those instead of current
existing flows; Also, add missing validations where needed.

Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Brian Maly <brian.maly@oracle.com>