riscv: dts: renesas: rzfive-smarc-som: Drop deleting interrupt properties from ETH0...

riscv: dts: renesas: rzfive-smarc-som: Drop deleting interrupt properties from ETH0/1 nodes

Now that we have enabled IRQC support for RZ/Five SoC switch to interrupt
mode for ethernet0/1 PHYs instead of polling mode.

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/20240403203503.634465-6-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>