arm64: dts: renesas: white-hawk: Drop SoC parts from sub boards

The White Hawk CSI/DSI and RAVB/Ethernet(1000Base-T1) sub boards are not
specific to R-Car V4H.

Hence rename their DTS file names to drop the "r8a779g0-" prefix, and
remove any references to R-Car V4H.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/f89613d0df04cfa6196f8797fe655cf7cec812de.1706192990.git.geert+renesas@glider.be

arch/arm64/boot/dts/renesas/r8a779g0-white-hawk.dts

@@ -7,8 +7,8 @@
 
 /dts-v1/;
 #include "r8a779g0-white-hawk-cpu.dtsi"
-#include "r8a779g0-white-hawk-csi-dsi.dtsi"
-#include "r8a779g0-white-hawk-ethernet.dtsi"
+#include "white-hawk-csi-dsi.dtsi"
+#include "white-hawk-ethernet.dtsi"
 
 / {
 	model = "Renesas White Hawk CPU and Breakout boards based on r8a779g0";

arch/arm64/boot/dts/renesas/r8a779g0-white-hawk-csi-dsi.dtsi → arch/arm64/boot/dts/renesas/white-hawk-csi-dsi.dtsi

 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 /*
- * Device Tree Source for the R-Car V4H White Hawk CSI/DSI sub-board
+ * Device Tree Source for the White Hawk CSI/DSI sub-board
  *
  * Copyright (C) 2022 Glider bv
  */

arch/arm64/boot/dts/renesas/r8a779g0-white-hawk-ethernet.dtsi → arch/arm64/boot/dts/renesas/white-hawk-ethernet.dtsi

 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 /*
- * Device Tree Source for the R-Car V4H White Hawk RAVB/Ethernet(1000Base-T1)
+ * Device Tree Source for the White Hawk RAVB/Ethernet(1000Base-T1)
  * sub-board
  *
  * Copyright (C) 2022 Glider bv