ARM: renesas: Add R8A779G0 V4H White Hawk board code

Add board code for R8A779G0 V4H White Hawk board.

Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Signed-off-by: Hai Pham <hai.pham.ud@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
[Marek: Synchronize configuration symbols which are now switched to Kconfig
        Mallocate gd->bd->bi_boot_params, i.e. drop the assignment
        Sort headers, use clrbits_le32(), use BIT macros where appropriate
        Use CONFIG_SYS_CLK_FREQ for counter frequency instead of custom macro]
diff --git a/arch/arm/mach-rmobile/Kconfig.rcar4 b/arch/arm/mach-rmobile/Kconfig.rcar4
index 2dc9f00..d4f93c8 100644
--- a/arch/arm/mach-rmobile/Kconfig.rcar4
+++ b/arch/arm/mach-rmobile/Kconfig.rcar4
@@ -38,9 +38,16 @@
 	help
 	  Support for Renesas R-Car Gen4 Spider platform
 
+config TARGET_WHITEHAWK
+	bool "White Hawk board"
+	imply R8A779G0
+	help
+	  Support for Renesas R-Car Gen4 White Hawk platform
+
 endchoice
 
 source "board/renesas/falcon/Kconfig"
 source "board/renesas/spider/Kconfig"
+source "board/renesas/whitehawk/Kconfig"
 
 endif