dt-bindings: arm: renesas: Document Renesas Falcon boards

Add device tree bindings documentation for Renesas R-Car V3U
Falcon CPU and BreakOut boards.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/1599739372-30669-2-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
diff --git a/Documentation/devicetree/bindings/arm/renesas.yaml b/Documentation/devicetree/bindings/arm/renesas.yaml
index 9f8c3353..01a6d0c 100644
--- a/Documentation/devicetree/bindings/arm/renesas.yaml
+++ b/Documentation/devicetree/bindings/arm/renesas.yaml
@@ -283,6 +283,14 @@
 
       - description: R-Car V3U (R8A779A0)
         items:
+          - enum:
+              - renesas,falcon-cpu # Falcon CPU board (RTP0RC779A0CPB0010S)
+          - const: renesas,r8a779a0
+
+      - items:
+          - enum:
+              - renesas,falcon-breakout # Falcon BreakOut board (RTP0RC779A0BOB0010S)
+          - const: renesas,falcon-cpu
           - const: renesas,r8a779a0
 
       - description: RZ/N1D (R9A06G032)