rt2x00: rt2800pci: don't use TXWI_DESC_SIZE directly
rt2x00: rt2800pci: don't use TXWI_DESC_SIZE directly

Different chipsets may use different TXWI descriptor
size. Instead of using a hardcoded value, use the
'queue->winfo_size' which holds the correct value for
a given device.

Signed-off-by: Gabor Juhos <0b85b0feb94c9a44e8676965f48a70291ba74edb@openwrt.org>
Acked-by: Stanislaw Gruszka <2ec9e03c860a4b259d1dd6980a011b203dc174e0@wp.pl>
Acked-by: Gertjan van Wingerde <1a7d4b7fcc67848a7146b426400f699af933a40d@gmail.com>
Signed-off-by: John W. Linville <2a53bac7a5d324865ef46ec4c38b2c0fba1456b4@tuxdriver.com>

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