[PATCH 3/24] RT2x00: Merge rt2x00_pci and rt2x00_usb

From Ivo van Doorn [off-list ref]

rt2x00_pci and rt2x00_usb are for 99% equal,
the only difference they have are not worth the duplicate code.
Merge the structures into rt2x00_dev.

Signed-off-by: Ivo van Doorn <redacted>

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http://www.mendiosus.nl/rt2x00/03_rt2x00_pciusb_dev.diff