ASoC: Intel: update stream only on stream IPC msgs

Only update the stream when the IPC message type matches stream type.

Signed-off-by: Paweł Piskorski <pawel.piskorski@intel.com>
Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Jie Yang <yang.jie@intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>