Clean all defconfigs with savedefconfig

In order to reduce merge conflicts and to maintain the simplest possible
defconfig files, we should be using the savedefconfig feature of Kconfig
every time a new feature is added. This keeps the defconfig settings to
a minimum (only those things not default) and keeps them in the same
order as the Kconfig options.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Cc: Tom Rini <trini@konsulko.com>
diff --git a/configs/spear320_defconfig b/configs/spear320_defconfig
index 7bd51a8..0172c15 100644
--- a/configs/spear320_defconfig
+++ b/configs/spear320_defconfig
@@ -1,6 +1,6 @@
-CONFIG_SYS_EXTRA_OPTIONS="spear320"
 CONFIG_ARM=y
 CONFIG_TARGET_SPEAR320=y
-CONFIG_ETH_DESIGNWARE=y
-CONFIG_NETDEVICES=y
 CONFIG_NET=y
+CONFIG_NETDEVICES=y
+CONFIG_SYS_EXTRA_OPTIONS="spear320"
+CONFIG_ETH_DESIGNWARE=y