dt-bindings: iommu: ipmmu-vmsa: Add device tree support for r8a774[35]

Document r8a774[35] specific compatible strings. The Renesas RZ/G1[ME]
(r8a774[35]) IPMMU are identical to the R-Car Gen2 family.
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Chris Paterson <chris.paterson2@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

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

@@ -11,6 +11,8 @@ Required Properties:
     the device is compatible with the R-Car Gen2 VMSA-compatible IPMMU.
 
     - "renesas,ipmmu-r8a73a4" for the R8A73A4 (R-Mobile APE6) IPMMU.
+    - "renesas,ipmmu-r8a7743" for the R8A7743 (RZ/G1M) IPMMU.
+    - "renesas,ipmmu-r8a7745" for the R8A7745 (RZ/G1E) IPMMU.
     - "renesas,ipmmu-r8a7790" for the R8A7790 (R-Car H2) IPMMU.
     - "renesas,ipmmu-r8a7791" for the R8A7791 (R-Car M2-W) IPMMU.
     - "renesas,ipmmu-r8a7793" for the R8A7793 (R-Car M2-N) IPMMU.
@@ -19,7 +21,8 @@ Required Properties:
     - "renesas,ipmmu-r8a7796" for the R8A7796 (R-Car M3-W) IPMMU.
     - "renesas,ipmmu-r8a77970" for the R8A77970 (R-Car V3M) IPMMU.
     - "renesas,ipmmu-r8a77995" for the R8A77995 (R-Car D3) IPMMU.
-    - "renesas,ipmmu-vmsa" for generic R-Car Gen2 VMSA-compatible IPMMU.
+    - "renesas,ipmmu-vmsa" for generic R-Car Gen2 or RZ/G1 VMSA-compatible
+			   IPMMU.
 
   - reg: Base address and size of the IPMMU registers.
   - interrupts: Specifiers for the MMU fault interrupts. For instances that