This patch adds audio support for Medion's line of laptops,
based on code shipped with the laptops.  Microphone support is
still being explored.
Signed-off-by: NTobin Davis <tdavis@dsl-only.net>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NJaroslav Kysela <perex@suse.cz>