USB: option: convert interface blacklisting to bitfields

It's cleaner than the array stuff, and we're about to add a bunch
more blacklist entries.  Second, there are devices that need both
the sendsetup and the reserved interface blacklists, which the
current code can't accommodate.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>