trace: refine reschedule time for dma trace

It is a simple fix for trace buffer overflowing at the boot
up time or debug mode FW. At boot up time, there are many trace
events for topology loading in very short time, the trace buffer
needs to be scheduled ASAP. 5us is the shortest time works on
every platforms.

Signed-off-by: Rander Wang <rander.wang@linux.intel.com>

Author: RanderWang

src/platform/apollolake/include/platform/platform.h

@@ -104,7 +104,7 @@ struct sof;
  * the interval of reschedule DMA trace copying in special case like half
  * fullness of local DMA trace buffer
  */
-#define DMA_TRACE_RESCHEDULE_TIME	5000
+#define DMA_TRACE_RESCHEDULE_TIME	5
 
 /* DSP should be idle in this time frame */
 #define PLATFORM_IDLE_TIME	750000

src/platform/baytrail/include/platform/platform.h

@@ -94,7 +94,7 @@ struct sof;
  * the interval of reschedule DMA trace copying in special case like half
  * fullness of local DMA trace buffer
  */
-#define DMA_TRACE_RESCHEDULE_TIME	5000
+#define DMA_TRACE_RESCHEDULE_TIME	5
 
 /* DSP should be idle in this time frame */
 #define PLATFORM_IDLE_TIME	750000

src/platform/cannonlake/include/platform/platform.h

@@ -110,7 +110,7 @@ struct sof;
  * the interval of reschedule DMA trace copying in special case like half
  * fullness of local DMA trace buffer
  */
-#define DMA_TRACE_RESCHEDULE_TIME	5000
+#define DMA_TRACE_RESCHEDULE_TIME	5
 
 /* DSP should be idle in this time frame */
 #define PLATFORM_IDLE_TIME	750000

src/platform/haswell/include/platform/platform.h

@@ -93,7 +93,7 @@ struct sof;
  * the interval of reschedule DMA trace copying in special case like half
  * fullness of local DMA trace buffer
  */
-#define DMA_TRACE_RESCHEDULE_TIME	5000
+#define DMA_TRACE_RESCHEDULE_TIME	5
 
 /* DSP should be idle in this time frame */
 #define PLATFORM_IDLE_TIME	750000