This patch fixes the macro definitions of MOD_SEL0 bit2 register deleted.

This is a correction because MOD_SEL register specification for R8A7796
SoC was changed in R-Car Gen3 Hardware User's Manual Rev.0.53E.

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