linux-phytec-ti

extcon: usb-gpio: add device binding for platform device

This is needed to handle the GPIO connected USB ID pin found on
Intel Baytrail devices.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Felipe Balbi <balbi@kernel.org>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>