kernel: deactivate some new network features

This deactivates the following options which were introduced between
kernel 4.9 and 4.14 in some kernel packages:
CONFIG_INET_ESP_OFFLOAD
CONFIG_INET6_ESP_OFFLOAD
CONFIG_LWTUNNEL_BPF
CONFIG_NET_9P_XEN

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

package/kernel/linux/modules/netsupport.mk

@@ -271,7 +271,8 @@ define KernelPackage/ipsec4
 	CONFIG_INET_XFRM_MODE_BEET \
 	CONFIG_INET_XFRM_MODE_TRANSPORT \
 	CONFIG_INET_XFRM_MODE_TUNNEL \
-	CONFIG_INET_XFRM_TUNNEL
+	CONFIG_INET_XFRM_TUNNEL \
+	CONFIG_INET_ESP_OFFLOAD=n
   FILES:=$(foreach mod,$(IPSEC4-m),$(LINUX_DIR)/net/$(mod).ko)
   AUTOLOAD:=$(call AutoLoad,32,$(notdir $(IPSEC4-m)))
 endef
@@ -311,7 +312,8 @@ define KernelPackage/ipsec6
 	CONFIG_INET6_XFRM_MODE_BEET \
 	CONFIG_INET6_XFRM_MODE_TRANSPORT \
 	CONFIG_INET6_XFRM_MODE_TUNNEL \
-	CONFIG_INET6_XFRM_TUNNEL
+	CONFIG_INET6_XFRM_TUNNEL \
+	CONFIG_INET6_ESP_OFFLOAD=n
   FILES:=$(foreach mod,$(IPSEC6-m),$(LINUX_DIR)/net/$(mod).ko)
   AUTOLOAD:=$(call AutoLoad,32,$(notdir $(IPSEC6-m)))
 endef
@@ -942,6 +944,7 @@ define KernelPackage/mpls
   KCONFIG:= \
 	CONFIG_MPLS=y \
 	CONFIG_LWTUNNEL=y \
+	CONFIG_LWTUNNEL_BPF=n \
 	CONFIG_NET_MPLS_GSO=m \
 	CONFIG_MPLS_ROUTING=m \
 	CONFIG_MPLS_IPTUNNEL=m
@@ -965,6 +968,7 @@ define KernelPackage/9pnet
   KCONFIG:= \
 	CONFIG_NET_9P \
 	CONFIG_NET_9P_DEBUG=n \
+	CONFIG_NET_9P_XEN=n \
 	CONFIG_NET_9P_VIRTIO
   FILES:= \
 	$(LINUX_DIR)/net/9p/9pnet.ko \