rockchip: config: enable the USB host for rk3288 based board

RK3288 using the dwc2 USB host controller, enable it and other usb host
funtion like storage and ethernet.

Signed-off-by: Eddie Cai <eddie.cai.linux@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/fennec-rk3288_defconfig b/configs/fennec-rk3288_defconfig
index bfc3917..d1b0ffc 100644
--- a/configs/fennec-rk3288_defconfig
+++ b/configs/fennec-rk3288_defconfig
@@ -17,6 +17,7 @@
 CONFIG_CMD_SF=y
 CONFIG_CMD_SPI=y
 CONFIG_CMD_I2C=y
+CONFIG_CMD_USB=y
 CONFIG_CMD_GPIO=y
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_CMD_CACHE=y
@@ -61,6 +62,8 @@
 CONFIG_DEBUG_UART_SHIFT=2
 CONFIG_SYS_NS16550=y
 CONFIG_SYSRESET=y
+CONFIG_USB=y
+CONFIG_USB_STORAGE=y
 CONFIG_USE_TINY_PRINTF=y
 CONFIG_CMD_DHRYSTONE=y
 CONFIG_ERRNO_STR=y