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/dts/Makefile b/arch/arm/dts/Makefile
index 3e378e8..337bee7 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -1048,7 +1048,8 @@
 
 dtb-$(CONFIG_RCAR_GEN4) += \
 	r8a779a0-falcon-u-boot.dtb \
-	r8a779f0-spider-u-boot.dtb
+	r8a779f0-spider-u-boot.dtb \
+	r8a779g0-white-hawk-u-boot.dtb
 
 ifdef CONFIG_RCAR_64
 DTC_FLAGS += -R 4 -p 0x1000