V4L/DVB: cx23885: Wrong command printed in cmd_to_str()

The wrong command was printed for case CX2341X_ENC_SET_DNR_FILTER_MODE,
and a typo in case CX2341X_ENC_SET_PCR_ID.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-By: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>