ALSA: hda/hdmi: Rewrite to new probe method

Convert the HDMI codec drivers to use the new hda_codec_ops probe.

The Intel and Nvidia-MCP HDMI drivers needed slightly more changes to
deal with the unified callbacks among all models.

Also another non-trivial change is Intel driver's set_power_state
callback.  An additional NULL check of codec->spec is needed there
since the set_power_state() may be called before the probe gets called
(e.g. in ASoC hda codec hda_codec_probe()).

Other than that, no functional changes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250709160434.1859-24-tiwai@suse.de