ALSA: hda/cmedia: Rewrite to new probe method

Convert the C-Media codec driver to use the new hda_codec_ops probe.

Since the CM9825 uses a completely different probe and codec ops,
factor out to an individual codec driver, snd-hda-codec-cm9825.

Other than that, no functional changes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250709160434.1859-13-tiwai@suse.de