GenericExperiment: Fix definition of "detected-marker"

Due to a bug (most likely a copy and paste issue), the detected-marker
group was defined to point to the "FAIL_marker"-set, which would be
redundant. This commit will correctly map it to the "DETECTED_marker"
group.

Change-Id: I7de688357006ced1adf2423e213ae6633629cb81

src/experiments/generic-experiment/experiment.hpp

@@ -59,7 +59,7 @@ public:
 
 		end_marker_groups["ok-marker"] = &OK_marker;
 		end_marker_groups["fail-marker"] = &FAIL_marker;
-		end_marker_groups["detected-marker"] = &FAIL_marker;
+		end_marker_groups["detected-marker"] = &DETECTED_marker;
 		end_marker_groups["group1-marker"] = &GROUP1_marker;
 		end_marker_groups["group2-marker"] = &GROUP2_marker;
 		end_marker_groups["group3-marker"] = &GROUP3_marker;