staging: vt6656: iwctl: Clean up braces on 'if' statements

Clean up braces on 'if' statements to (mostly) match coding style.
A few other bits, like removing a few blank lines and such may have snug in.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>