pinctrl: sh-pfc: r8a77980: Add missing MOD_SEL0 field

The Module Select Register 0 contains 20 (= 5 x 4) reserved bits, and 12
single-bit fields, but the variable field descriptor lacks a field of 4
reserved bits.

Fixes: f5912524 ("pinctrl: sh-pfc: Add R8A77980 PFC support")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>

drivers/pinctrl/sh-pfc/pfc-r8a77980.c

@@ -2821,7 +2821,7 @@ static const struct pinmux_cfg_reg pinmux_config_regs[] = {
 #define F_(x, y)	x,
 #define FM(x)		FN_##x,
 	{ PINMUX_CFG_REG_VAR("MOD_SEL0", 0xe6060500, 32,
-			     4, 4, 4, 4,
+			     4, 4, 4, 4, 4,
 			     1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1) {
 		/* RESERVED 31, 30, 29, 28 */
 		0, 0, 0, 0, 0, 0, 0, 0,	0, 0, 0, 0, 0, 0, 0, 0,