busybox: default to 1.18

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/busybox/Config.in

@@ -13,7 +13,7 @@ if BR2_PACKAGE_BUSYBOX
 
 choice
 	prompt "BusyBox Version"
-	default BR2_BUSYBOX_VERSION_1_17_X
+	default BR2_BUSYBOX_VERSION_1_18_X
 	help
 	  Select the version of BusyBox you wish to use.