ARM: renesas: Add R8A77990 E3 Ebisu board

Add support for the R8A77990 Ebisu board.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/arch/arm/mach-rmobile/Kconfig.64 b/arch/arm/mach-rmobile/Kconfig.64
index 6b93d25..cb9f569 100644
--- a/arch/arm/mach-rmobile/Kconfig.64
+++ b/arch/arm/mach-rmobile/Kconfig.64
@@ -34,6 +34,11 @@
 	help
           Support for Renesas R-Car Gen3 Eagle platform
 
+config TARGET_EBISU
+	bool "Ebisu board"
+	help
+          Support for Renesas R-Car Gen3 Ebisu platform
+
 config TARGET_SALVATOR_X
 	bool "Salvator-X board"
 	help
@@ -51,6 +56,7 @@
 
 source "board/renesas/draak/Kconfig"
 source "board/renesas/eagle/Kconfig"
+source "board/renesas/ebisu/Kconfig"
 source "board/renesas/salvator-x/Kconfig"
 source "board/renesas/ulcb/Kconfig"