mfd: intel-m10-bmc: Constify struct regmap_config

`m10bmc_pmci_regmap_config` and `intel_m10bmc_regmap_config` are not
modified and can be declared as const to move their data to a
read-only section.
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Link: https://lore.kernel.org/r/20240704-mfd-const-regmap_config-v2-7-0c8785b1331d@gmail.comSigned-off-by: Lee Jones <lee@kernel.org>

drivers/mfd/intel-m10-bmc-pmci.c

@@ -336,7 +336,7 @@ static const struct regmap_access_table m10bmc_pmci_access_table = {
 	.n_yes_ranges	= ARRAY_SIZE(m10bmc_pmci_regmap_range),
 };
 
-static struct regmap_config m10bmc_pmci_regmap_config = {
+static const struct regmap_config m10bmc_pmci_regmap_config = {
 	.reg_bits = 32,
 	.reg_stride = 4,
 	.val_bits = 32,

drivers/mfd/intel-m10-bmc-spi.c

@@ -24,7 +24,7 @@ static const struct regmap_access_table m10bmc_access_table = {
 	.n_yes_ranges	= ARRAY_SIZE(m10bmc_regmap_range),
 };
 
-static struct regmap_config intel_m10bmc_regmap_config = {
+static const struct regmap_config intel_m10bmc_regmap_config = {
 	.reg_bits = 32,
 	.val_bits = 32,
 	.reg_stride = 4,