staging: unisys: visornic: visornic_main.c: fix multiline dereference.

This patch fixes two checkpatch warnings in the visornic_main.c
file to avoid multiline dereference.

Signed-off-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>