arm64: dts: ti: k3-am62x-sk-common: Fix graph_child_address warns

Fix the following warnings when compiling dtbs with W=1:

../arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi:343.10-353.6: Warning (graph_child_address): /bus@f0000/i2c@20000000/tps6598x@3f/connector/ports: graph node has single child node 'port@0', #address-cells/#size-cells are not necessary
../arch/arm64/boot/dts/ti/k3-am62-main.dtsi:633.22-643.5: Warning (graph_child_address): /bus@f0000/dwc3-usb@f900000/usb@31000000: graph node has single child node 'port@0', #address-cells/#size-cells are not necessary

Cc: Roger Quadros <rogerq@kernel.org>
Signed-off-by: Dhruva Gole <d-gole@ti.com>
Tested-by: Roger Quadros <rogerq@kernel.org>
Link: https://lore.kernel.org/r/20240626101520.1782320-3-d-gole@ti.com


Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>