ASoC: Intel: Correct a macro for FW message

For the broadwell official released FW(Since 8.4.1.43), the macro
SST_HSW_NO_CHANNELS is changed and fixed to 4, so here change it
to 4.
Signed-off-by: NJie Yang <yang.jie@intel.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

sound/soc/intel/sst-haswell-ipc.h

@@ -21,7 +21,7 @@
 #include <linux/kernel.h>
 #include <linux/platform_device.h>
 
-#define SST_HSW_NO_CHANNELS		2
+#define SST_HSW_NO_CHANNELS		4
 #define SST_HSW_MAX_DX_REGIONS		14
 #define SST_HSW_DX_CONTEXT_SIZE        (640 * 1024)