clk: meson: s4: peripherals: Constify struct regmap_config

`clkc_regmap_config` is not modified and can be declared as const to
 move its data to a read-only section.

Signed-off-by: Javier Carrasco <[email protected]>
Reviewed-by: Neil Armstrong <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jerome Brunet <[email protected]>

Author: javiercarrascocruz

drivers/clk/meson/s4-peripherals.c

@@ -3747,7 +3747,7 @@ static struct clk_regmap *const s4_periphs_clk_regmaps[] = {
 	&s4_adc_extclk_in_gate,
 };
 
-static struct regmap_config clkc_regmap_config = {
+static const struct regmap_config clkc_regmap_config = {
 	.reg_bits       = 32,
 	.val_bits       = 32,
 	.reg_stride     = 4,