arm64: dts: renesas: r9a07g043: Fillup the OSTM{0,1,2} stub nodes

Fillup the OSTM{0,1,2} stub nodes in RZ/G2UL (R9A07G043) SoC DTSI.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20220425170530.200921-6-biju.das.jz@bp.renesas.com


Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>