From: Milan Svoboda <msvoboda@ra.rockwell.com>

This patch adds IXP465 into the list of known devices and
adds IXP465 to the list of devices that have cfr. This
is not described in the hardware documentation, but without
it driver don't work.

Workaround (#if 1) that seemed to get rid of lost
status irqs is disabled for IXP4XX as it caused freezes
during testing of control messages. No lost irqs are
visible on IXP4XX.

Driver survived tests running over night without any
visible problems.

This patch is against 2.6.16.13 with previous patches applied.

Signed-off-by: Milan Svoboda <msvoboda@ra.rockwell.com>
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