openvpn: re-add option comp_lzo

This option is deprecated but needs to be kept for backward compatibility. [0]

[0] https://community.openvpn.net/openvpn/wiki/DeprecatedOptions#a--comp-lzo

Signed-off-by: Martin Schiller <ms@dev.tdt.de>

package/network/services/openvpn/Makefile

@@ -10,7 +10,7 @@ include $(TOPDIR)/rules.mk
 PKG_NAME:=openvpn
 
 PKG_VERSION:=2.4.6
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 
 PKG_SOURCE_URL:=\
 	https://build.openvpn.net/downloads/releases/ \

package/network/services/openvpn/files/openvpn.options

@@ -14,6 +14,7 @@ cipher
 client_config_dir
 client_connect
 client_disconnect
+comp_lzo
 compress
 connect_freq
 connect_retry