pinctrl: sh-pfc: r8a7796: Fix SCIF_CLK_{A,B} pin's MOD_SEL assignment to MOD_SEL1 bit10

This patch fixes SCIF_CLK_{A,B} pin's MOD_SEL assignment from MOD_SEL1
bit11 to MOD_SEL1 bit10.

This is a correction to the incorrect implementation of IPSR register
pin assignment for R8A7796 SoC specification of R-Car Gen3 Hardware
User's Manual Rev.0.51E or later.

Fixes: f9aece73 ("pinctrl: sh-pfc: Initial R8A7796 PFC support")
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>