clk: renesas: rcar-gen4: Fix initconst confusion for cpg_pll_config

clk: renesas: rcar-gen4: Fix initconst confusion for cpg_pll_config

A variable pointing to const isn't const itself. It'd have to contain
"const" keyword after "*" too. Therefore, cpg_pll_config cannot be put
to "rodata".  Hence use __initdata instead of __initconst to fix this.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
[js] more explanatory commit message.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20220623083217.26433-2-jslaby@suse.cz
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>