arm64: dts: renesas: r8a77965: Move usb2_phy1 up

Move "usb2_ph1" place-holder device node next to "usb2_phy0" one.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>