pinctrl: sh-pfc: r8a7791/r8a7793: Correct SCIFB1_B SCK MOD_SEL value

When using serial port SCIFB1_B, transmit works, but nothing is
received.

Receive fails because the SCIFB1_SCK_B settings configure the wrong
value for the sel_scifb1 field in the Module Select Register (MOD_SEL),
due to an ambiguity in the R-Car M2-W and M2-N datasheets.

Tested on r8a7791/koelsch using pins 53 (TXD) and 72 (RXD) on EXIO
Connector A.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/sh-pfc/pfc-r8a7791.c

@@ -889,7 +889,7 @@ static const u16 pinmux_data[] = {
 	PINMUX_IPSR_DATA(IP2_2_0, DACK1),
 	PINMUX_IPSR_MODSEL_DATA(IP2_2_0, SCIFA1_TXD_C, SEL_SCIFA1_2),
 	PINMUX_IPSR_MODSEL_DATA(IP2_2_0, SCIFB1_TXD_C, SEL_SCIFB1_2),
-	PINMUX_IPSR_MODSEL_DATA(IP2_2_0, SCIFB1_SCK_B, SEL_SCIFB1_0),
+	PINMUX_IPSR_MODSEL_DATA(IP2_2_0, SCIFB1_SCK_B, SEL_SCIFB1_1),
 	PINMUX_IPSR_DATA(IP2_2_0, A20),
 	PINMUX_IPSR_MODSEL_DATA(IP2_4_3, SPCLK, SEL_QSP_0),
 	PINMUX_IPSR_DATA(IP2_6_5, A21),