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/bf537-pnav_defconfig b/configs/bf537-pnav_defconfig
index 9190de8..cb01bc1 100644
--- a/configs/bf537-pnav_defconfig
+++ b/configs/bf537-pnav_defconfig
@@ -6,9 +6,11 @@
 CONFIG_CMD_GPIO=y
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_CMD_DHCP=y
+CONFIG_CMD_MII=y
 CONFIG_CMD_PING=y
 CONFIG_CMD_SNTP=y
 CONFIG_CMD_DNS=y
+CONFIG_CMD_CACHE=y
 CONFIG_NET_RANDOM_ETHADDR=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_STMICRO=y