ALSA: hda: auto_parser: remove shadowed variable declaration

ALSA: hda: auto_parser: remove shadowed variable declaration

Fix cppcheck warning:

sound/pci/hda/hda_auto_parser.c:353:7: style: Local variable 'i'
shadows outer variable [shadowVariable]
  int i = 0;
      ^
sound/pci/hda/hda_auto_parser.c:182:6: note: Shadowed declaration
 int i;
     ^
sound/pci/hda/hda_auto_parser.c:353:7: note: Shadow variable
  int i = 0;
      ^

It's not clear why a new declaration was added, remove and reuse
variable declared with larger scope.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200902212133.30964-11-pierre-louis.bossart@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>