sunxi: Enable USB DRC on Wexler TAB7200

Enable the otg/drc usb controller on the Wexler TAB7200 tablet.

Signed-off-by: Aleksei Mamlin <mamlinav@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

configs/Wexler_TAB7200_defconfig

@@ -2,10 +2,15 @@ CONFIG_ARM=y
 CONFIG_ARCH_SUNXI=y
 CONFIG_MACH_SUN7I=y
 CONFIG_DRAM_CLK=384
+CONFIG_USB0_VBUS_PIN="PB9"
+CONFIG_USB0_VBUS_DET="AXP0-VBUS-DETECT"
+CONFIG_USB0_ID_DET="PH4"
+CONFIG_AXP_GPIO=y
 CONFIG_VIDEO_LCD_MODE="x:800,y:480,depth:24,pclk_khz:33000,le:45,ri:210,up:22,lo:22,hs:1,vs:1,sync:3,vmode:0"
 CONFIG_VIDEO_LCD_POWER="PH8"
 CONFIG_VIDEO_LCD_BL_EN="PH7"
 CONFIG_VIDEO_LCD_BL_PWM="PB2"
+CONFIG_USB_MUSB_HOST=y
 CONFIG_DEFAULT_DEVICE_TREE="sun7i-a20-wexler-tab7200"
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
 CONFIG_SPL=y