net: dm9000: Fix build

Commit c88fcb (net: dm9000: convert to hw_features) broke the build of
the dm9000 driver since it merged functions which use different names
for the board info structure used for I/O operations without updating
all the references to use the same name. Fix that.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: David S. Miller <davem@davemloft.net>