Support removable devices in automatic connections

services/netctl-auto@.service

 [Unit]
 Description=Automatic wireless network connection using netctl profiles
 Documentation=man:netctl.special(7)
+Requisite=multi-user.target
 BindsTo=sys-subsystem-net-devices-%i.device
 After=sys-subsystem-net-devices-%i.device network-pre.target
 Before=network.target
@@ -14,4 +15,4 @@ ExecStop=/usr/bin/netctl-auto stop %I
 ExecStopPost=/usr/bin/netctl-auto clean %I
 
 [Install]
-WantedBy=multi-user.target
+WantedBy=sys-subsystem-net-devices-%i.device

services/netctl-ifplugd@.service

 [Unit]
 Description=Automatic wired network connection using netctl profiles
 Documentation=man:netctl.special(7)
+Requisite=multi-user.target
 BindsTo=sys-subsystem-net-devices-%i.device
 After=sys-subsystem-net-devices-%i.device network-pre.target
 
@@ -9,4 +10,4 @@ NotifyAccess=all
 ExecStart=/usr/bin/ifplugd -i %I -r /etc/ifplugd/netctl.action -bfIns
 
 [Install]
-WantedBy=multi-user.target
+WantedBy=sys-subsystem-net-devices-%i.device