arm: rmobile: Add support R8A7793

Renesas R8A7793 is CPU with Cortex-A15. This supports the basic register
definition and GPIO and framework of PFC.

Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
diff --git a/arch/arm/include/asm/arch-rmobile/gpio.h b/arch/arm/include/asm/arch-rmobile/gpio.h
index d25ea61..93b20af 100644
--- a/arch/arm/include/asm/arch-rmobile/gpio.h
+++ b/arch/arm/include/asm/arch-rmobile/gpio.h
@@ -13,6 +13,9 @@
 #elif defined(CONFIG_R8A7791)
 #include "r8a7791-gpio.h"
 void r8a7791_pinmux_init(void);
+#elif defined(CONFIG_R8A7793)
+#include "r8a7793-gpio.h"
+void r8a7793_pinmux_init(void);
 #elif defined(CONFIG_R8A7794)
 #include "r8a7794-gpio.h"
 void r8a7794_pinmux_init(void);