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/sh7752evb_defconfig b/configs/sh7752evb_defconfig
index 5a77fe0..07594d1 100644
--- a/configs/sh7752evb_defconfig
+++ b/configs/sh7752evb_defconfig
@@ -11,14 +11,17 @@
 # CONFIG_CMD_ENV_EXISTS is not set
 # CONFIG_CMD_LOADB is not set
 # CONFIG_CMD_FLASH is not set
+CONFIG_CMD_MMC=y
 CONFIG_CMD_SF=y
 # CONFIG_CMD_FPGA is not set
 # CONFIG_CMD_ECHO is not set
 # CONFIG_CMD_ITEST is not set
 # CONFIG_CMD_SOURCE is not set
 # CONFIG_CMD_SETEXPR is not set
+CONFIG_CMD_MII=y
 CONFIG_CMD_PING=y
 # CONFIG_CMD_MISC is not set
+CONFIG_CMD_EXT2=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_MACRONIX=y
 CONFIG_SPI_FLASH_STMICRO=y