arm64: dts: renesas: r9a07g054: Fillup the WDT{0,1,2} stub nodes

Fillup the WDT{0,1,2} stub nodes in RZ/V2L (R9A07G054) SoC DTSI.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20220227203744.18355-9-prabhakar.mahadev-lad.rj@bp.renesas.com


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