ALSA: hdspm - AES32: Add TCO and Sync-In text entries

Provide the text for the two new clock options "TCO" and "Sync In" on
AES32 cards.

Signed-off-by: Adrian Knoth <adi@drcomp.erfurt.thur.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>