build: enable PER_FEED_REPO by default

Enable the separate feed repositories by default to align custom builds with the repositories
available on the snapshot download server.

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

SVN-Revision: 42112

package/base-files/image-config.in

@@ -211,7 +211,7 @@ endif
 
 menuconfig PER_FEED_REPO
 	bool "Separate feed repositories" if IMAGEOPT
-	default n
+	default y
 	help
 		If set, a separate repository is generated within bin/*/packages/
 		for the core packages and each enabled feed.