pinctrl: renesas: rzg2l: Fix missing port register 21h

Remove the duplicate port register 22h and replace it with missing port
register 21h.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20210922074140.22178-1-biju.das.jz@bp.renesas.com
Fixes: c4c4637e ("pinctrl: renesas: Add RZ/G2L pin and gpio controller driver")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

drivers/pinctrl/renesas/pinctrl-rzg2l.c

@@ -852,7 +852,7 @@ static const u32 rzg2l_gpio_configs[] = {
 	RZG2L_GPIO_PORT_PACK(2, 0x1e, RZG2L_MPXED_PIN_FUNCS),
 	RZG2L_GPIO_PORT_PACK(2, 0x1f, RZG2L_MPXED_PIN_FUNCS),
 	RZG2L_GPIO_PORT_PACK(2, 0x20, RZG2L_MPXED_PIN_FUNCS),
-	RZG2L_GPIO_PORT_PACK(3, 0x22, RZG2L_MPXED_PIN_FUNCS),
+	RZG2L_GPIO_PORT_PACK(3, 0x21, RZG2L_MPXED_PIN_FUNCS),
 	RZG2L_GPIO_PORT_PACK(2, 0x22, RZG2L_MPXED_PIN_FUNCS),
 	RZG2L_GPIO_PORT_PACK(2, 0x23, RZG2L_MPXED_PIN_FUNCS),
 	RZG2L_GPIO_PORT_PACK(3, 0x24, RZG2L_MPXED_ETH_PIN_FUNCS(PIN_CFG_IOLH_ETH0)),