A20-OLinuXino-Lime2: Enable USB gadget support

Based on A13-OLinuXino, enable DFU and UMS support.
Signed-off-by: NTom Rini <trini@konsulko.com>
Reviewed-by: NHans de Goede <hdegoede@redhat.com>

configs/A20-OLinuXino-Lime2_defconfig

@@ -12,9 +12,17 @@ CONFIG_SYS_EXTRA_OPTIONS="SUNXI_GMAC,RGMII,AHCI,SATAPWR=SUNXI_GPC(3)"
 CONFIG_SPL=y
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_FLASH is not set
+CONFIG_CMD_DFU=y
+CONFIG_CMD_USB_MASS_STORAGE=y
 # CONFIG_CMD_FPGA is not set
 CONFIG_RTL8211X_PHY_FORCE_MASTER=y
 CONFIG_ETH_DESIGNWARE=y
 CONFIG_AXP_ALDO3_VOLT=2800
 CONFIG_AXP_ALDO4_VOLT=2800
 CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_MUSB_GADGET=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_DOWNLOAD=y
+CONFIG_G_DNL_MANUFACTURER="Allwinner Technology"
+CONFIG_G_DNL_VENDOR_NUM=0x1f3a
+CONFIG_G_DNL_PRODUCT_NUM=0x1010