arm64: dts: verdin-imx8mp: add usb_1 over-current detection

Add Verdin USB_1 over-current detection functionality via Verdin
USB_1_OC# (SODIMM 157) being active-low and removing its previous
gpio_hog3 mapping.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>