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>

Author: Andi Kleen

drivers/clk/renesas/rcar-gen4-cpg.c

@@ -23,7 +23,7 @@
 #include "rcar-gen4-cpg.h"
 #include "rcar-cpg-lib.h"
 
-static const struct rcar_gen4_cpg_pll_config *cpg_pll_config __initconst;
+static const struct rcar_gen4_cpg_pll_config *cpg_pll_config __initdata;
 static unsigned int cpg_clk_extalr __initdata;
 static u32 cpg_mode __initdata;