iommu/ipmmu-vmsa: Add r8a7796 DT binding

Update the IPMMU DT binding documentation to include the r8a7796 compat
string for R-Car M3-W.

Signed-off-by: Magnus Damm <[email protected]>
Acked-by: Laurent Pinchart <[email protected]>
Acked-by: Rob Herring <[email protected]>
Acked-by: Simon Horman <[email protected]>
Acked-by: Geert Uytterhoeven <[email protected]>
Signed-off-by: Alex Williamson <[email protected]>

Author: Magnus Damm

Documentation/devicetree/bindings/iommu/renesas,ipmmu-vmsa.txt

@@ -16,6 +16,7 @@ Required Properties:
     - "renesas,ipmmu-r8a7793" for the R8A7793 (R-Car M2-N) IPMMU.
     - "renesas,ipmmu-r8a7794" for the R8A7794 (R-Car E2) IPMMU.
     - "renesas,ipmmu-r8a7795" for the R8A7795 (R-Car H3) IPMMU.
+    - "renesas,ipmmu-r8a7796" for the R8A7796 (R-Car M3-W) IPMMU.
     - "renesas,ipmmu-vmsa" for generic R-Car Gen2 VMSA-compatible IPMMU.
 
   - reg: Base address and size of the IPMMU registers.