ALSA: ac97: (cosmetic) align argument names

Fix cppcheck warning:

sound/ac97/bus.c:133:60: style:inconclusive: Function
'snd_ac97_bus_scan_one' argument 1 names different: declaration 'ac97'
definition 'adrv'. [funcArgNamesDifferent]

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200902212133.30964-14-pierre-louis.bossart@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/ac97/ac97_core.h

@@ -3,7 +3,7 @@
  * Copyright (C) 2016 Robert Jarzmik <robert.jarzmik@free.fr>
  */
 
-unsigned int snd_ac97_bus_scan_one(struct ac97_controller *ac97,
+unsigned int snd_ac97_bus_scan_one(struct ac97_controller *adrv,
 				   unsigned int codec_num);
 
 static inline bool ac97_ids_match(unsigned int id1, unsigned int id2,