Add new power hints for launch activity

BUG: 28220567
Change-Id: I6da77240cdca5caa2e8504c36e83287954fd6ffc
diff --git a/include/hardware/power.h b/include/hardware/power.h
index c451d67..f15e3cd 100644
--- a/include/hardware/power.h
+++ b/include/hardware/power.h
@@ -63,7 +63,8 @@
     POWER_HINT_VIDEO_DECODE = 0x00000004,
     POWER_HINT_LOW_POWER = 0x00000005,
     POWER_HINT_SUSTAINED_PERFORMANCE = 0x00000006,
-    POWER_HINT_VR_MODE = 0x00000007
+    POWER_HINT_VR_MODE = 0x00000007,
+    POWER_HINT_LAUNCH = 0x00000008
 } power_hint_t;
 
 typedef enum {