staging: unisys: include: Fix up comment style in visorbus.h

Visorbus.h had comments that did not have /* on its own line, this patch
makes it uniform.

Reviewed-by: Sameer Wadgaonkar <sameer.wadgaonkar@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Reviewed-by: Tim Sell <timothy.sell@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>