The generic rt2x00 code has been changed to allow the
drivers toimplement dynamic data_queue initialization.

Remove the static data queue descriptor structures
and implement the queue_init callback instead.
Signed-off-by: NGabor Juhos <juhosg@openwrt.org>
Acked-by: NStanislaw Gruszka <sgruszka@redhat.com>
Acked-by: NGertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>