staging: unisys: fix else statement in visornic_main.c

This patch fixes the following types of check patch warnings:
else is not generally useful after a break or return

Signed-off-by: Erik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>