package/openvpn: adds target install of systemd unit files

Signed-off-by: Edmundo Ferreira <fc.edmundo@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 7105e65cd6b8f857bab54e4c0a8c57da776b0564)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/openvpn/openvpn.mk

@@ -68,4 +68,11 @@ define OPENVPN_INSTALL_INIT_SYSV
 		$(TARGET_DIR)/etc/init.d/S60openvpn
 endef
 
+define OPENVPN_INSTALL_INIT_SYSTEMD
+	$(INSTALL) -D -m 0644 $(@D)/distro/systemd/openvpn-client@.service \
+		$(TARGET_DIR)/usr/lib/systemd/system/openvpn-client@.service
+	$(INSTALL) -D -m 0644 $(@D)/distro/systemd/openvpn-server@.service \
+		$(TARGET_DIR)/usr/lib/systemd/system/openvpn-server@.service
+endef
+
 $(eval $(autotools-package))