- Two USB certification configuration
i.MX customers need one Image for both USB certification and production,
add USB certification configurations will not affect normal functions.

- CONFIG_EXTCON_USB_GPIO
Align with v4.19 kernel, some old boards uses this configurations.

Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>