pinctrl: sh-pfc: Add r8a7793 support

Regarding pin control, r8a7791 and r8a7793 are identical, so it is
sufficient to add an sh_pfc_soc_info structure to enable r8a7793 support.

Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/pinctrl/sh-pfc/core.c b/drivers/pinctrl/sh-pfc/core.c
index 287a3d0..9655636 100644
--- a/drivers/pinctrl/sh-pfc/core.c
+++ b/drivers/pinctrl/sh-pfc/core.c
@@ -481,6 +481,12 @@
 		.data = &r8a7791_pinmux_info,
 	},
 #endif
+#ifdef CONFIG_PINCTRL_PFC_R8A7793
+	{
+		.compatible = "renesas,pfc-r8a7793",
+		.data = &r8a7793_pinmux_info,
+	},
+#endif
 #ifdef CONFIG_PINCTRL_PFC_SH73A0
 	{
 		.compatible = "renesas,pfc-sh73a0",