dt-bindings: pinctrl: renesas: Add alpha-numerical port support for RZ/V2H

RZ/V2H has ports P0-P9 and PA-PB. Add support for defining alpha-numerical
ports in DT using RZV2H_* macros.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20241216195325.164212-2-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Author: bijudas

include/dt-bindings/pinctrl/renesas,r9a09g057-pinctrl.h

@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/*
+ * This header provides constants for Renesas RZ/V2H family pinctrl bindings.
+ *
+ * Copyright (C) 2024 Renesas Electronics Corp.
+ *
+ */
+
+#ifndef __DT_BINDINGS_PINCTRL_RENESAS_R9A09G057_PINCTRL_H__
+#define __DT_BINDINGS_PINCTRL_RENESAS_R9A09G057_PINCTRL_H__
+
+#include <dt-bindings/pinctrl/rzg2l-pinctrl.h>
+
+/* RZV2H_Px = Offset address of PFC_P_mn  - 0x20 */
+#define RZV2H_P0	0
+#define RZV2H_P1	1
+#define RZV2H_P2	2
+#define RZV2H_P3	3
+#define RZV2H_P4	4
+#define RZV2H_P5	5
+#define RZV2H_P6	6
+#define RZV2H_P7	7
+#define RZV2H_P8	8
+#define RZV2H_P9	9
+#define RZV2H_PA	10
+#define RZV2H_PB	11
+
+#define RZV2H_PORT_PINMUX(b, p, f)	RZG2L_PORT_PINMUX(RZV2H_P##b, p, f)
+#define RZV2H_GPIO(port, pin)		RZG2L_GPIO(RZV2H_P##port, pin)
+
+#endif /* __DT_BINDINGS_PINCTRL_RENESAS_R9A09G057_PINCTRL_H__ */