Documentation: fix sound related doc refs

Make sound doc refs valid.
Signed-off-by: Tom Saeger <tom.saeger@oracle.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Documentation/sound/hd-audio/notes.rst

@@ -192,7 +192,7 @@ preset model instead of PCI (and codec-) SSID look-up.
 What ``model`` option values are available depends on the codec chip.
 Check your codec chip from the codec proc file (see "Codec Proc-File"
 section below).  It will show the vendor/product name of your codec
-chip.  Then, see Documentation/sound/HD-Audio-Models.rst file,
+chip.  Then, see Documentation/sound/hd-audio/models.rst file,
 the section of HD-audio driver.  You can find a list of codecs
 and ``model`` options belonging to each codec.  For example, for Realtek
 ALC262 codec chip, pass ``model=ultra`` for devices that are compatible

Documentation/sound/kernel-api/writing-an-alsa-driver.rst

@@ -2498,7 +2498,7 @@ Mic boost
 Mic-boost switch is set as “Mic Boost” or “Mic Boost (6dB)”.
 
 More precise information can be found in
-``Documentation/sound/alsa/ControlNames.txt``.
+``Documentation/sound/designs/control-names.rst``.
 
 Access Flags
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