pinctrl: sh-pfc: Add PORT_GP_24 helper macro

This follows the style of existing PORT_GP_X macros and
will be used by a follow-up patch for the r8a7791 SoC.

Signed-off-by: Simon Horman <[e-mail]>
Acked-by: Linus Walleij <[e-mail]>
Signed-off-by: Geert Uytterhoeven <[e-mail]>

drivers/pinctrl/sh-pfc/sh_pfc.h

···
 	PORT_GP_CFG_1(bank, 22, fn, sfx, cfg)
 #define PORT_GP_23(bank, fn, sfx)	PORT_GP_CFG_23(bank, fn, sfx, 0)
 
-#define PORT_GP_CFG_26(bank, fn, sfx, cfg)				\
+#define PORT_GP_CFG_24(bank, fn, sfx, cfg)				\
 	PORT_GP_CFG_23(bank, fn, sfx, cfg),				\
-	PORT_GP_CFG_1(bank, 23, fn, sfx, cfg),				\
+	PORT_GP_CFG_1(bank, 23, fn, sfx, cfg)
+#define PORT_GP_24(bank, fn, sfx)	PORT_GP_CFG_24(bank, fn, sfx, 0)
+
+#define PORT_GP_CFG_26(bank, fn, sfx, cfg)				\
+	PORT_GP_CFG_24(bank, fn, sfx, cfg),				\
 	PORT_GP_CFG_1(bank, 24, fn, sfx, cfg),				\
 	PORT_GP_CFG_1(bank, 25, fn, sfx, cfg)
 #define PORT_GP_26(bank, fn, sfx)	PORT_GP_CFG_26(bank, fn, sfx, 0)