mips: mt76xx: linkit-smart-7688: Enable USB and FS support

This patch enables USB and file-system support on the LinkIt smart
MT7688 module for both, the normal and the RAM default config.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
diff --git a/configs/linkit-smart-7688-ram_defconfig b/configs/linkit-smart-7688-ram_defconfig
index 7ca5223..649db0f 100644
--- a/configs/linkit-smart-7688-ram_defconfig
+++ b/configs/linkit-smart-7688-ram_defconfig
@@ -21,17 +21,21 @@
 CONFIG_CMD_GPIO=y
 # CONFIG_CMD_LOADS is not set
 CONFIG_CMD_MTD=y
+CONFIG_CMD_PART=y
 CONFIG_CMD_SF=y
 CONFIG_CMD_SPI=y
+CONFIG_CMD_USB=y
 CONFIG_CMD_DHCP=y
 CONFIG_CMD_MII=y
 CONFIG_CMD_PING=y
 CONFIG_CMD_TIME=y
+CONFIG_CMD_FS_GENERIC=y
+# CONFIG_DOS_PARTITION is not set
 CONFIG_DEFAULT_DEVICE_TREE="linkit-smart-7688"
 CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_NET_RANDOM_ETHADDR=y
 # CONFIG_DM_DEVICE_REMOVE is not set
-CONFIG_HAVE_BLOCK_DEVICE=y
+CONFIG_BLK=y
 CONFIG_CLK=y
 CONFIG_LED=y
 CONFIG_LED_BLINK=y
@@ -47,6 +51,7 @@
 CONFIG_PHY_FIXED=y
 CONFIG_MT7628_ETH=y
 CONFIG_PHY=y
+CONFIG_MT76X8_USB_PHY=y
 CONFIG_POWER_DOMAIN=y
 CONFIG_RAM=y
 CONFIG_DM_RESET=y
@@ -55,5 +60,12 @@
 CONFIG_SPI=y
 CONFIG_MT7621_SPI=y
 CONFIG_SYSRESET_SYSCON=y
+CONFIG_USB=y
+CONFIG_DM_USB=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_GENERIC=y
+CONFIG_USB_STORAGE=y
+CONFIG_FS_EXT4=y
+CONFIG_FS_FAT=y
 CONFIG_LZMA=y
 CONFIG_LZO=y