arm64: dts: renesas: r8a779h0: Add family fallback for VIN IP

arm64: dts: renesas: r8a779h0: Add family fallback for VIN IP

The usage of the R-Car V4M VIN bindings where merged before the bindings
where approved.  At that time the family fallback compatible was not
part of the bindings, add it.

Fixes: 2bb78d9fb7c9 ("arm64: dts: renesas: r8a779h0: Add video capture nodes")
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Link: https://lore.kernel.org/20240704161620.1425409-7-niklas.soderlund+renesas@ragnatech.se
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>