spi: sh-msiof: document R8A779{7|8}0 bindings

Document the R-Car V3{M|H} (R8A779{7|8}0) SoCs in the Renesas MSIOF
bindings.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/spi/sh-msiof.txt

@@ -13,6 +13,8 @@ Required properties:
 			 "renesas,msiof-r8a7795" (R-Car H3)
 			 "renesas,msiof-r8a7796" (R-Car M3-W)
 			 "renesas,msiof-r8a77965" (R-Car M3-N)
+			 "renesas,msiof-r8a77970" (R-Car V3M)
+			 "renesas,msiof-r8a77980" (R-Car V3H)
 			 "renesas,msiof-r8a77990" (R-Car E3)
 			 "renesas,msiof-r8a77995" (R-Car D3)
 			 "renesas,msiof-sh73a0" (SH-Mobile AG5)