staging: unisys: visorbus: visorbus_main.c: cleanup and consolidate comments

Use all 80 characters of the line for comments to help reduce the number
of extra lines in the code.

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>