pinctrl: sh-pfc: r8a7796: Fix VIN versioned groups

Versioned VIN groups can appear on different sets of pins. Using the
VIN_DATA_PIN_GROUP macro now supports proper naming of said groups
through an optional 'version' argument.

Use the 'version' argument for said macro to fix naming of versioned
groups for the R-Car M3-W R8A7796 SoC.

Fixes: a5c2949f ("pinctrl: sh-pfc: r8a7796: Deduplicate VIN4 pin definitions")
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>