ALSA: hda - Fix another typo in HD-Audio.txt

Documentation/sound/alsa/HD-Audio.txt

@@ -265,7 +265,7 @@ submit the improvement patch to the author.
 
 Direct Debugging
 ~~~~~~~~~~~~~~~~
-If no model option gives you a better result, and you are a touch guy
+If no model option gives you a better result, and you are a tough guy
 to fight against evil, try debugging via hitting the raw HD-audio
 codec verbs to the device.  Some tools are available: hda-emu and
 hda-analyzer.  The detailed description is found in the sections