e1_recorder: Skip storing data to disk if line is in ALARM state

Change-Id: Ie4c671053d372bc700f506198d1916853da03b9e
diff --git a/src/recorder.h b/src/recorder.h
index 12bc993..458fb1d 100644
--- a/src/recorder.h
+++ b/src/recorder.h
@@ -17,6 +17,7 @@
 };
 
 struct e1_recorder_line {
+	bool has_alarm;
 	struct {
 		bool enabled;
 		uint8_t line_nr;