Add YH820 current usage for runtime estimation

Change-Id: If50d7e6db3077853dfba438d9765cdb3513f2910
diff --git a/firmware/export/config/samsungyh820.h b/firmware/export/config/samsungyh820.h
index d937a3f..51c829c 100644
--- a/firmware/export/config/samsungyh820.h
+++ b/firmware/export/config/samsungyh820.h
@@ -143,6 +143,13 @@
 
 #define CONFIG_BATTERY_MEASURE VOLTAGE_MEASURE
 
+/* define current usage levels */
+#define CURRENT_NORMAL     90  /* All values are estimations from my battery */
+#define CURRENT_BACKLIGHT  50  /* benches and may need some tuning */
+#if defined(HAVE_RECORDING)
+#define CURRENT_RECORD     5
+#endif
+
 /* Hardware controlled charging */
 #define CONFIG_CHARGING CHARGING_SIMPLE