dts: renesas: Update interrupt nodes for Renesas RZ/G3S, N2L, T2M, T2L

- Change node's name, node's register size, node's address cells
of intc node for Renesas RZ/G3S
- Add `renesas, rz-intc` compatible and #size-cells of 0 to intc node
of Renesas RZ/G3S
- Add `reg` property to irq nodes for Renesas RZ/G3S
- Add `renesas, rz-icu` compatible for Renesas RZ/N2L, T2M, T2L

Signed-off-by: Quang Le <quang.le.eb@bp.renesas.com>
Signed-off-by: Tien Nguyen <tien.nguyen.zg@renesas.com>