clk: renesas: r8a77965: Add FDP clock

This patch adds FDP1-0 clock to the R8A77965 SoC.

Signed-off-by: Hoan Nguyen An <na-hoan@jinso.co.jp>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>