Staging: bcm: IPv6Protocol.c: Removed unnecessary if-else blocks

This patch simplifies

    if (a) {
        x = false;
    } else {
        if (b) {
            x = false;
        }
    }

to
    if (a || b) {
        x = false;
    }

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>