ALSA: hda: Move codec drivers into sound/hda/codecs directory

Now move the all remaining codec drivers from sound/pci/hda to
sound/hda/codecs subdirectory.  Some drivers are put under the further
vendor subdirectory, and the vendor helper code (*_helper.c) are put
under helpers subdirectory.  Also the sub-codec drivers are moved under
a different subdirectory, sound/hda/codecs/sub-codecs, for
distinguishing from the main HD-audio codec drivers.

The prefix patch_ and hda_ as well as the suffix _helper are dropped
from file names as they are mostly superfluous.

No functional changes but just file path shuffling.

Reviewed-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250709160434.1859-7-tiwai@suse.de