sunxi: fix build without ext4 rootfs

The sdcard image generation uses CONFIG_TARGET_ROOTFS_PARTSIZE, which is
currently bound to TARGET_ROOTFS_EXT4FS on this target.

Since the rootfs is squashfs anyway, allow deselecting of the ext4fs
one.

Sort the target list alphabetically while here.

Signed-off-by: Andre Heider <[email protected]>

config/Config-images.in

@@ -273,7 +273,7 @@ menu "Target Images"
 
 	config TARGET_ROOTFS_PARTSIZE
 		int "Root filesystem partition size (in MB)"
-		depends on GRUB_IMAGES || USES_ROOTFS_PART || TARGET_ROOTFS_EXT4FS || TARGET_rb532 || TARGET_mvebu || TARGET_uml
+		depends on GRUB_IMAGES || USES_ROOTFS_PART || TARGET_ROOTFS_EXT4FS || TARGET_mvebu || TARGET_rb532 || TARGET_sunxi || TARGET_uml
 		default 256
 		help
 		  Select the root filesystem partition size.