arm64: dts: renesas: Add initial DTSI for RZ/V2L SoC

The RZ/V2L SoC is package- and pin-compatible with RZ/G2L, the only
difference being that the RZ/V2L SoC has additional DRP-AI IP (AI
accelerator).

Add initial DTSI for the RZ/V2L SoC with below SoC specific dtsi files
for supporting single core and dual core devices:

    r9a07g054l1.dtsi => RZ/V2L R9A07G054L1 SoC specific parts
    r9a07g054l2.dtsi => RZ/V2L R9A07G054L2 SoC specific parts

Both the RZ/G2L and RZ/V2L SMARC EVK SoMs are identical apart from the
SoCs used, hence the common dtsi files (rzg2l-smarc*.dtsi) are shared
between the RZ/G2L and RZ/V2L SMARC EVKs.  Place holders are added in
device nodes to avoid compilation errors for devices which have not been
enabled yet on the RZ/V2L SoC.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20220110134659.30424-11-prabhakar.mahadev-lad.rj@bp.renesas.comSigned-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arch/arm64/boot/dts/renesas/r9a07g054l1.dtsi

+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+/*
+ * Device Tree Source for the RZ/V2L R9A07G054L1 SoC specific parts
+ *
+ * Copyright (C) 2021 Renesas Electronics Corp.
+ */
+
+/dts-v1/;
+#include "r9a07g054.dtsi"
+
+/ {
+	compatible = "renesas,r9a07g054l1", "renesas,r9a07g054";
+
+	cpus {
+		/delete-node/ cpu-map;
+		/delete-node/ cpu@100;
+	};
+
+	timer {
+		interrupts-extended = <&gic GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>,
+				      <&gic GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>,
+				      <&gic GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>,
+				      <&gic GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(1) | IRQ_TYPE_LEVEL_LOW)>;
+	};
+};

arch/arm64/boot/dts/renesas/r9a07g054l2.dtsi

+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+/*
+ * Device Tree Source for the RZ/V2L R9A07G054L2 SoC specific parts
+ *
+ * Copyright (C) 2021 Renesas Electronics Corp.
+ */
+
+/dts-v1/;
+#include "r9a07g054.dtsi"
+
+/ {
+	compatible = "renesas,r9a07g054l2", "renesas,r9a07g054";
+};