staging: unisys: make MODULE_DESCRIPTIONs consistent

This patch ensures that consistent verbiage is used in the
MODULE_DESCRIPTION text (reported by 'modinfo') for all of
the Unisys s-Par drivers.

Signed-off-by: Jon Frisch <jon.frisch@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>