clk: renesas: Make PLL configurations per-SoC

clk: renesas: Make PLL configurations per-SoC

Not all SoCs have the same PLL configuration options,
so make those PLL configuraion tables per-SoC.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>