Fix run-ptpl hardware timestamping mode

scripts/run-ptp4l

@@ -30,6 +30,7 @@ while getopts "i:o:p:rsH" opt; do
         interface=${OPTARG}
         ;;
     H )
+        hardware_ts=1
         opts+=" -H "
         ;;
     o )
@@ -52,6 +53,10 @@ done
 
 shift $((OPTIND-1))
 
+if [ -z "$hardware_ts" ]; then
+  opts+=" -S"
+fi
+
 opts+="-i $interface"
 
 if [ $profile_name == "none" ]; then
@@ -69,5 +74,5 @@ log=ptp4l_${interface}_log
 if [ -n "$reset" ]; then
   killall ptp4l;
 fi
-echo "ptp4l $opts --step_threshold=1 -m -S &> ~/$log &";
-ptp4l $opts --step_threshold=1 -m -S &> ~/$log &
+echo "ptp4l $opts --step_threshold=1 -m &> ~/$log &";
+ptp4l $opts --step_threshold=1 -m &> ~/$log &