staging: unisys: visorbus: Update visorchipset postcode values

The visorchipset.c functionality was moved into the visorbus driver
previously. This patch updates the s-Par firmware postcode values to
reflect this status.

Signed-off-by: Bryan Thompson <bryan.thompson@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>