[ALSA] hda-codec - keep the format verb at closing PCM streams

Keep the format verb at closing PCM streams.
Introduced snd_hda_codec_cleanup_stream() for the parcicular purpose.

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

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

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

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

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

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

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

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

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

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