ITE: drivers/usb/device: Add USB Device Controller Support

Add USB Device Driver (usb_dc) of ITE IT82xx2

TEST=west build -p always -b it82xx2_evb
1. zephyr/sample/subsys/usb/hid
2. zephyr/sample/subsys/usb/hid-mouse

Signed-off-by: BJ Chen <bj.chen@ite.com.tw>
11 files changed