AMBARI-17452. Increase timeout for Grafana start/initialize opertaion. (swagle)

ambari-metrics/ambari-metrics-grafana/conf/unix/ambari-metrics-grafana

@@ -122,7 +122,7 @@ case "$1" in
         exit 1
       fi
       i=0
-      timeout=10
+      timeout=60
       # Wait for the process to be properly started before exiting
       until { cat "$PID_FILE" | xargs kill -0; } >/dev/null 2>&1
       do