mark ipset as 2.6 only

SVN-Revision: 9382

package/ipset/Makefile

@@ -21,7 +21,7 @@ include $(INCLUDE_DIR)/package.mk
 define Package/ipset
   SECTION:=net
   CATEGORY:=Network
-  DEPENDS:=@!TARGET_etrax
+  DEPENDS:=@!TARGET_etrax @LINUX_2_6
   TITLE:=Netfilter ip sets administration utility
   URL:=http://ipset.netfilter.org/
 endef