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/board/renesas/whitehawk/Kconfig b/board/renesas/whitehawk/Kconfig
new file mode 100644
index 0000000..05a8789
--- /dev/null
+++ b/board/renesas/whitehawk/Kconfig
@@ -0,0 +1,15 @@
+if TARGET_WHITEHAWK
+
+config SYS_SOC
+	default "rmobile"
+
+config SYS_BOARD
+	default "whitehawk"
+
+config SYS_VENDOR
+	default "renesas"
+
+config SYS_CONFIG_NAME
+	default "whitehawk"
+
+endif