emu10k1: Front channels via fxbus 8 and 9
emu10k1: Front channels via fxbus 8 and 9

Routes front channels via fxbus 8 and 9 instead of fxbus 0 and 1. This
makes the front and default devices independent of each other, and
"Wave Surround", "Wave Center" and "Wave LFE" don't have to be muted
during 5.1 playback.

Signed-off-by: Mikael Magnusson <4e7a311fb75fcba19ee00424657e05322bd36bf2@users.sourceforge.net>

alsa-project/alsa-lib,tiwai/alsa-lib,lgirdwood/alsa-lib,gittup/alsa-lib,mengdonglin/alsa-lib,gittup/alsa-lib,zedongchen/alsa-lib,mikelima/alsa-lib,mengdonglin/alsa-lib,zedongchen/alsa-lib,mikelima/alsa-lib,tiwai/alsa-lib,gittup/alsa-lib,zedongchen/alsa-lib,Distrotech/alsa-lib,zedongchen/alsa-lib,mengdonglin/alsa-lib,takaswie/alsa-lib,Distrotech/alsa-lib,gittup/alsa-lib,tiwai/alsa-lib,lgirdwood/alsa-lib,mikelima/alsa-lib,lgirdwood/alsa-lib,takaswie/alsa-lib,tiwai/alsa-lib,alsa-project/alsa-lib,takaswie/alsa-lib,mengdonglin/alsa-lib,lgirdwood/alsa-lib,Distrotech/alsa-lib,zedongchen/alsa-lib,alsa-project/alsa-lib,alsa-project/alsa-lib,takaswie/alsa-lib,Distrotech/alsa-lib,Distrotech/alsa-lib,lgirdwood/alsa-lib,mikelima/alsa-lib,takaswie/alsa-lib,mikelima/alsa-lib,mengdonglin/alsa-lib