Added support for advanced power management support for output ports on
92HD7xxx family of codecs. Inactive output ports are powered down when
the pin sense  doesn't detect a connection, and powered back up when a
connection is sensed.
Signed-off-by: NMatthew Ranostay <mranostay@embeddedalley.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NJaroslav Kysela <perex@perex.cz>