ACPI: SBS: constify powersupply properties

The arrays are never modified, make them const.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/acpi/sbs.c

@@ -241,11 +241,11 @@ static int acpi_sbs_battery_get_property(struct power_supply *psy,
 	return 0;
 }
 
-static enum power_supply_property sbs_ac_props[] = {
+static const enum power_supply_property sbs_ac_props[] = {
 	POWER_SUPPLY_PROP_ONLINE,
 };
 
-static enum power_supply_property sbs_charge_battery_props[] = {
+static const enum power_supply_property sbs_charge_battery_props[] = {
 	POWER_SUPPLY_PROP_STATUS,
 	POWER_SUPPLY_PROP_PRESENT,
 	POWER_SUPPLY_PROP_TECHNOLOGY,
@@ -263,7 +263,7 @@ static enum power_supply_property sbs_charge_battery_props[] = {
 	POWER_SUPPLY_PROP_MANUFACTURER,
 };
 
-static enum power_supply_property sbs_energy_battery_props[] = {
+static const enum power_supply_property sbs_energy_battery_props[] = {
 	POWER_SUPPLY_PROP_STATUS,
 	POWER_SUPPLY_PROP_PRESENT,
 	POWER_SUPPLY_PROP_TECHNOLOGY,