added configs for clocks, aka clients

CLIENTS/ptp4l-client.service

@@ -0,0 +1,19 @@
+# /etc/systemd/system/ptp4l-client.service
+
+
+[Unit]
+Description=PTP client on enp4s0
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=simple
+ExecStart=/usr/sbin/ptp4l \
+    -i enp4s0 \
+    -f /etc/linuxptp/ptp4l-client.conf \
+    -m
+Restart=always
+RestartSec=3
+
+[Install]
+WantedBy=multi-user.target