V4L/DVB (13965): zl10039, jump to error on error

Stanse found an unreachable statement in zl10039_attach. There is
a `break' followed by `goto error'. Remove that break, so that it
can handle the error.

Cc: Igor M. Liplianin <liplianin@me.by>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>