dt-bindings: i2c: sh_mobile: Document r8a7743/5 support

Document i2c Device Tree support for RZ/G1[ME]
(also known as r8a774[35]) SoCs. They are compatible with
R-Car Gen2 SoC family. No driver change is required as the
initialisation sequence is currently the same as for the
R-Car Gen2 fallback binding.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt

@@ -4,6 +4,8 @@ Required properties:
 - compatible      :
 			- "renesas,iic-r8a73a4" (R-Mobile APE6)
 			- "renesas,iic-r8a7740" (R-Mobile A1)
+			- "renesas,iic-r8a7743" (RZ/G1M)
+			- "renesas,iic-r8a7745" (RZ/G1E)
 			- "renesas,iic-r8a7790" (R-Car H2)
 			- "renesas,iic-r8a7791" (R-Car M2-W)
 			- "renesas,iic-r8a7792" (R-Car V2H)
@@ -12,7 +14,8 @@ Required properties:
 			- "renesas,iic-r8a7795" (R-Car H3)
 			- "renesas,iic-r8a7796" (R-Car M3-W)
 			- "renesas,iic-sh73a0" (SH-Mobile AG5)
-			- "renesas,rcar-gen2-iic" (generic R-Car Gen2 compatible device)
+			- "renesas,rcar-gen2-iic" (generic R-Car Gen2 or RZ/G1
+							compatible device)
 			- "renesas,rcar-gen3-iic" (generic R-Car Gen3 compatible device)
 			- "renesas,rmobile-iic" (generic device)