V4L/DVB (8334): tda10023: Fix typo in tda10023_attach dummy routine

Fix compiler warning caused by a typo in the tda10023_attach dummy routine.

Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>