In the current driver, there is a consistent mistake between the SURROUND and
the SIDE channels.  This patch fixes it.
Signed-off-by: NHarald Welte <HaraldWelte@viatech.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NJaroslav Kysela <perex@perex.cz>