Fix counter name to avoid crash

Fix counter name to avoid crash.

Signed-off-by: subhash kumar singh <subh.singh@samsung.com>
Change-Id: Icd14dc07432ce083ab3ec81308aa99adbb27cd3d
diff --git a/hwApp.go b/hwApp.go
index 40a8b71..14dd4f6 100755
--- a/hwApp.go
+++ b/hwApp.go
@@ -247,7 +247,7 @@
 	}
 
 	hw := HWApp{
-		stats: xapp.Metric.RegisterCounterGroup(metrics, "hw-go"), // register counter
+               stats: xapp.Metric.RegisterCounterGroup(metrics, "hw_go"), // register counter
 	}
 	hw.Run()
 }