l7-filter: enhanced linux-header and linu26 post confs to apply the xt_layer7.h.diff patch

network/l7-filter/pkg_linux-header_post.conf

@@ -14,3 +14,4 @@
 # --- SDE-COPYRIGHT-NOTE-END ---
 
 . $base/package/*/l7-filter/patch_o_matic.in
+var_append patchfiles " " "${base}/package/*/linux-header/xt_layer7.h.diff"

network/l7-filter/pkg_linux26_post.conf

@@ -1,8 +1,8 @@
 # --- SDE-COPYRIGHT-NOTE-BEGIN ---
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
-# Filename: package/.../l7-filter/pkg_linux26_post.conf
-# Copyright (C) 2007 - 2008 The OpenSDE Project
+# Filename: package/.../l7-filter/pkg_linux-header_post.conf
+# Copyright (C) 2008 The OpenSDE Project
 # Copyright (C) 2004 - 2006 The T2 SDE Project
 #
 # More information can be found in the files COPYING and README.
@@ -14,3 +14,4 @@
 # --- SDE-COPYRIGHT-NOTE-END ---
 
 . $base/package/*/l7-filter/patch_o_matic.in
+var_append patchfiles " " "${base}/package/*/linux-header/xt_layer7.h.diff"