netsupport: improve xfrm module support

-switch to module autoprobe
-exclude 4.9 kernel

Signed-off-by: André Valentin <avalentin@marcant.net>

package/kernel/linux/modules/netsupport.mk

@@ -386,10 +386,10 @@ $(eval $(call KernelPackage,ip6-vti))
 define KernelPackage/xfrm-interface
   SUBMENU:=$(NETWORK_SUPPORT_MENU)
   TITLE:=IPsec XFRM Interface
-  DEPENDS:=+kmod-ipsec4 +kmod-ipsec6 @!LINUX_4_14
+  DEPENDS:=+kmod-ipsec4 +kmod-ipsec6 @!LINUX_4_14 @!LINUX_4_9
   KCONFIG:=CONFIG_XFRM_INTERFACE
   FILES:=$(LINUX_DIR)/net/xfrm/xfrm_interface.ko
-  AUTOLOAD:=$(call AutoLoad,33,xfrm_interface)
+  AUTOLOAD:=$(call AutoProbe,xfrm_interface)
 endef
 
 define KernelPackage/xfrm-interface/description