msm: kgsl: Add idlestats sleep event notification

Change-Id: Ie632d3f44661575ad8c7b41f064eff5f3b068f62
Signed-off-by: Lucille Sylvester <lsylvest@codeaurora.org>
diff --git a/include/linux/idle_stats_device.h b/include/linux/idle_stats_device.h
index 0b1ee39..7906d18 100644
--- a/include/linux/idle_stats_device.h
+++ b/include/linux/idle_stats_device.h
@@ -9,6 +9,7 @@
 #define MSM_IDLE_STATS_EVENT_BUSY_TIMER_EXPIRED_RESET 2
 #define MSM_IDLE_STATS_EVENT_COLLECTION_NEARLY_FULL   4
 #define MSM_IDLE_STATS_EVENT_COLLECTION_FULL          8
+#define MSM_IDLE_STATS_EVENT_IDLE_TIMER_EXPIRED      16
 
 /*
  * All time, timer, and time interval values are in units of