Power: add back support for camera preview in power HAL
This commit basically reverts commit fcd7a60ea7717a8a02ff9220bf080bb1583379ce
and updates the code after POWER_HINT_AUDIO removal
diff --git a/include/hardware/power.h b/include/hardware/power.h
index 70bc745..5a6e849 100644
--- a/include/hardware/power.h
+++ b/include/hardware/power.h
@@ -71,6 +71,7 @@
POWER_HINT_CPU_BOOST = 0x00000110,
POWER_HINT_LAUNCH_BOOST = 0x00000111,
POWER_HINT_SET_PROFILE = 0x00000112,
+ POWER_HINT_CAM_PREVIEW = 0x00000113
} power_hint_t;
typedef enum {