pinctrl: renesas: r8a77995: Retain POCCTRL0 register across suspend/resume

The POC Control Register 0 (POCCTRL0) on R-Car D3 is not registered in
the pinmux_ioctrl_regs[] array.  Hence it is not saved/restored during
suspend/resume, and its contents may be lost after s2ram.

This went unnoticed when improving suspend/resume support in commit
d92ee9cf ("pinctrl: sh-pfc: rcar-gen3: Retain TDSELCTRL register
across suspend/resume").

Fix this by moving the pinmux_ioctrl_regs[] array up, and adding the
POCCTRL0 register.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/d17402b83b1f3fa0f572527c0382027bccb86205.1678271030.git.geert+renesas@glider.be

drivers/pinctrl/renesas/pfc-r8a77995.c

@@ -2855,11 +2855,23 @@ static const struct pinmux_cfg_reg pinmux_config_regs[] = {
 	{ },
 };
 
+enum ioctrl_regs {
+	POCCTRL0,
+	TDSELCTRL,
+};
+
+static const struct pinmux_ioctrl_reg pinmux_ioctrl_regs[] = {
+	[POCCTRL0] = { 0xe6060380, },
+	[TDSELCTRL] = { 0xe60603c0, },
+	{ /* sentinel */ },
+};
+
+
 static int r8a77995_pin_to_pocctrl(unsigned int pin, u32 *pocctrl)
 {
 	int bit = -EINVAL;
 
-	*pocctrl = 0xe6060380;
+	*pocctrl = pinmux_ioctrl_regs[POCCTRL0].reg;
 
 	if (pin >= RCAR_GP_PIN(3, 0) && pin <= RCAR_GP_PIN(3, 9))
 		bit = 29 - (pin - RCAR_GP_PIN(3, 0));
@@ -3075,15 +3087,6 @@ static const struct pinmux_bias_reg pinmux_bias_regs[] = {
 	{ /* sentinel */ }
 };
 
-enum ioctrl_regs {
-	TDSELCTRL,
-};
-
-static const struct pinmux_ioctrl_reg pinmux_ioctrl_regs[] = {
-	[TDSELCTRL] = { 0xe60603c0, },
-	{ /* sentinel */ },
-};
-
 static const struct pinmux_bias_reg *
 r8a77995_pin_to_bias_reg(const struct sh_pfc *pfc, unsigned int pin,
 			 unsigned int *puen_bit, unsigned int *pud_bit)