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/O2DNT2_RAMBOOT_defconfig b/configs/O2DNT2_RAMBOOT_defconfig
index 210da9a..181a69e 100644
--- a/configs/O2DNT2_RAMBOOT_defconfig
+++ b/configs/O2DNT2_RAMBOOT_defconfig
@@ -7,5 +7,8 @@
 CONFIG_AUTOBOOT_KEYED=y
 CONFIG_AUTOBOOT_PROMPT="Autobooting in %d seconds, press password to stop\n"
 CONFIG_AUTOBOOT_STOP_STR="++++++++++"
+CONFIG_CMD_I2C=y
 # CONFIG_CMD_SETEXPR is not set
+CONFIG_CMD_DHCP=y
+CONFIG_CMD_PING=y
 CONFIG_OF_LIBFDT=y