ARM: renesas: Add R8A779A0 V3U Falcon board code

Add board code for the R8A779A0 V3U Falcon board.

Signed-off-by: Hai Pham <hai.pham.ud@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
--
Marek: - various small rebase fixes and clean ups
diff --git a/arch/arm/mach-rmobile/Kconfig.64 b/arch/arm/mach-rmobile/Kconfig.64
index e22012e..8df90ac 100644
--- a/arch/arm/mach-rmobile/Kconfig.64
+++ b/arch/arm/mach-rmobile/Kconfig.64
@@ -110,6 +110,12 @@
 	help
           Support for Renesas R-Car Gen3 Ebisu platform
 
+config TARGET_FALCON
+	bool "Falcon board"
+	imply R8A779A0
+	help
+          Support for Renesas R-Car Gen3 Falcon platform
+
 config TARGET_HIHOPE_RZG2
 	bool "HiHope RZ/G2 board"
 	imply R8A774A1
@@ -160,6 +166,7 @@
 source "board/renesas/draak/Kconfig"
 source "board/renesas/eagle/Kconfig"
 source "board/renesas/ebisu/Kconfig"
+source "board/renesas/falcon/Kconfig"
 source "board/renesas/salvator-x/Kconfig"
 source "board/renesas/ulcb/Kconfig"
 source "board/beacon/beacon-rzg2m/Kconfig"