busybox: fix broken default for FEATURE_IP_ROUTE_DIR (#21845)

Changeset r47775 introduced a wrong default value "n" for the ip applets
config search path, breaking the handling of named routing tables and other
objects having alias configurations.

Fix the issue by providing a proper default value aligned with the value
used by full iproute2.

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

SVN-Revision: 48716

package/utils/busybox/Config-defaults.in

@@ -2172,7 +2172,7 @@ config BUSYBOX_DEFAULT_FEATURE_IP_ROUTE
 	default y
 config BUSYBOX_DEFAULT_FEATURE_IP_ROUTE_DIR
 	string
-	default "n"
+	default "/etc/iproute2"
 config BUSYBOX_DEFAULT_FEATURE_IP_TUNNEL
 	bool
 	default n

package/utils/busybox/Makefile

@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2006-2015 OpenWrt.org
+# Copyright (C) 2006-2016 OpenWrt.org
 #
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=busybox
 PKG_VERSION:=1.24.1
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 PKG_FLAGS:=essential
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2