configs: Re-sync almost all of cmd/Kconfig

This syncs up the current cmd/Kconfig and include/configs/ files with the
only exception being CMD_NAND.  Due to how we have used this historically
we need to take further care here when converting.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/x600_defconfig b/configs/x600_defconfig
index e2a2c81..05d2f350 100644
--- a/configs/x600_defconfig
+++ b/configs/x600_defconfig
@@ -6,8 +6,13 @@
 CONFIG_AUTOBOOT_KEYED=y
 CONFIG_AUTOBOOT_PROMPT="Hit SPACE in %d seconds to stop autoboot.\n"
 CONFIG_AUTOBOOT_STOP_STR=" "
+CONFIG_LOOPW=y
+CONFIG_CMD_I2C=y
+CONFIG_CMD_USB=y
 CONFIG_CMD_GPIO=y
 # CONFIG_CMD_SETEXPR is not set
+CONFIG_CMD_DHCP=y
+CONFIG_CMD_PING=y
 CONFIG_NETDEVICES=y
 CONFIG_ETH_DESIGNWARE=y
 CONFIG_USE_TINY_PRINTF=y