arm64: dts: renesas: r9a07g043: Move interrupt-parent property to common DTSI

arm64: dts: renesas: r9a07g043: Move interrupt-parent property to common DTSI

Now that we have added support for IRQC to both RZ/Five and RZ/G2UL SoCs
we can move the interrupt-parent for pinctrl node back to the common
shared r9a07g043.dtsi file.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240403203503.634465-5-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>