clk: renesas: r8a779a0: Add VIN clocks

Add definitions of the VIN instance clocks for R-Car V3U.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Link: https://lore.kernel.org/r/20201016111158.17521-5-jacopo+renesas@jmondi.org


Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>