hdac_ext_stream assign doesn't require key mapping as in case of
hdac_stream. So for host stream, the key to device mapping needs
to be removed.
Signed-off-by: NJeeja KP <jeeja.kp@intel.com>
Signed-off-by: NVinod Koul <vinod.koul@intel.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>