pinctrl: sh-pfc: r8a7796: Rename SSI_{WS,SCK}0129 to SSI_{WS,SCK}01239

Based on Rev 0.50 or later R-Car Gen3 datasheet.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>