New round for this assorted fixes and clean-up series. There is more room for
clean-ups, and I'll start preparing more patches once these are accepted.
This series consists of cleanups and minor improvements on mvneta, mv643xx_eth
and mvmdio drivers. None of the patches imply any functionality change, except
for the patch six "Change the number of default rx queues to one".
This patch reduces the driver's allocated resources and makes the multiqueue
path in the poll function not get taken. The previous patchset contains more
details: