configs: Re-sync with cmd/Kconfig

Update the config.h and defconfig files for the commands that 8e3c036
converted over to Kconfig

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/strider_con_defconfig b/configs/strider_con_defconfig
index 316ceaf..985aab8 100644
--- a/configs/strider_con_defconfig
+++ b/configs/strider_con_defconfig
@@ -10,8 +10,11 @@
 CONFIG_AUTOBOOT_KEYED=y
 CONFIG_AUTOBOOT_STOP_STR=" "
 CONFIG_CMD_MEMTEST=y
+CONFIG_CMD_MMC=y
 CONFIG_CMD_I2C=y
 # CONFIG_CMD_SETEXPR is not set
+CONFIG_CMD_MII=y
 CONFIG_CMD_PING=y
+CONFIG_CMD_EXT2=y
 CONFIG_SYS_NS16550=y
 CONFIG_OF_LIBFDT=y