ALSA: hda - Drop azx_mixer_create()

It's just an indirection, so let the caller directly calling
snd_hda_build_controls().

Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --cc sound/pci/hda/hda_controller.c
Simple merge

diff --cc sound/pci/hda/hda_controller.h
Simple merge

diff --cc sound/pci/hda/hda_intel.c
Simple merge

diff --cc sound/pci/hda/hda_tegra.c
Simple merge