pinctrl: renesas: Allow up to 10 fields for drive_regs

Needed to support R-Car E3 and RZ/G2E drive regs.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20220320092542.2308-2-wsa+renesas@sang-engineering.comSigned-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

drivers/pinctrl/renesas/sh_pfc.h

@@ -161,7 +161,7 @@ struct pinmux_drive_reg_field {
 
 struct pinmux_drive_reg {
 	u32 reg;
-	const struct pinmux_drive_reg_field fields[8];
+	const struct pinmux_drive_reg_field fields[10];
 };
 
 #define PINMUX_DRIVE_REG(name, r) \