config/Config-images.in: enable zlib as the default ubi compression

http://patchwork.openwrt.org/patch/5686/

Signed-off-by: John Crispin <[email protected]>

SVN-Revision: 41329

config/Config-images.in

@@ -158,7 +158,7 @@ menu "Target Images"
 
 		choice
 			prompt "compression"
-			default TARGET_UBIFS_COMPRESSION_NONE
+			default TARGET_UBIFS_COMPRESSION_ZLIB
 			depends on TARGET_ROOTFS_UBIFS
 			help
 			  Select compression type