ASoC: SOF: ipc: introduce no_stream_position in sof_ipc_stream_params struct

The host period bytes value needs to be passed to firmware.
However current implementation uses this field for different
purpose - to indicate whether FW should send stream position
to the host. Therefore this patch introduces another field
"no_stream_position", a boolean value aimed to store information
about position tracking. This way host_period_bytes preserves its
original value.
Signed-off-by: Marcin Rajwa <marcin.rajwa@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20190927200538.660-9-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

include/sound/sof/stream.h

@@ -83,10 +83,10 @@ struct sof_ipc_stream_params {
 	uint16_t sample_valid_bytes;
 	uint16_t sample_container_bytes;
 
-	/* for notifying host period has completed - 0 means no period IRQ */
 	uint32_t host_period_bytes;
+	uint16_t no_stream_position; /**< 1 means don't send stream position */
 
-	uint32_t reserved[2];
+	uint16_t reserved[3];
 	uint16_t chmap[SOF_IPC_MAX_CHANNELS];	/**< channel map - SOF_CHMAP_ */
 } __packed;