hpplus: fix build regression

This fixes kernel regression for 2.6.27-rc in
      http://bugzilla.kernel.org/show_bug.cgi?id=11547


The change to split 8390 into old isa and non-isa versions
overlooked this driver.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>