rockchip: usb: gadget: add rk3066 product id

Product id of rk3066 usb otg is 0x300a.

Signed-off-by: Paweł Jarosz <paweljarosz3691@gmail.com>
Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index d81a9c5..8c6cf47 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -61,6 +61,7 @@
 	hex "Product ID of the USB device"
 	default 0x1010 if ARCH_SUNXI
 	default 0x310a if ROCKCHIP_RK3036
+	default 0x300a if ROCKCHIP_RK3066
 	default 0x310c if ROCKCHIP_RK3128
 	default 0x320a if ROCKCHIP_RK3229 || ROCKCHIP_RK3288
 	default 0x330a if ROCKCHIP_RK3328