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/at91sam9g10ek_nandflash_defconfig b/configs/at91sam9g10ek_nandflash_defconfig
index 505c5ed..7de00c6 100644
--- a/configs/at91sam9g10ek_nandflash_defconfig
+++ b/configs/at91sam9g10ek_nandflash_defconfig
@@ -7,7 +7,10 @@
 # CONFIG_CMD_IMI is not set
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_LOADS is not set
+CONFIG_CMD_USB=y
 # CONFIG_CMD_FPGA is not set
 # CONFIG_CMD_SOURCE is not set
 # CONFIG_CMD_SETEXPR is not set
+CONFIG_CMD_DHCP=y
+CONFIG_CMD_PING=y
 CONFIG_OF_LIBFDT=y