riscv: dts: renesas: rzfive-smarc-som: Enable OSTM nodes

riscv: dts: renesas: rzfive-smarc-som: Enable OSTM nodes

Enable OSTM{1,2} nodes on RZ/Five SMARC SoM.

Note, OSTM{1,2} nodes are enabled in the RZ/G2UL SMARC SoM DTSI [0] hence
deleting the disabled nodes from RZ/Five SMARC SoM DTSI enables it here
too as we include [0] in RZ/Five SMARC SoM DTSI.

[0] arch/arm64/boot/dts/renesas/rzg2ul-smarc-som.dtsi

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/20230102222233.274021-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>