boot: update for 13.0.0/aula parameter changes (closes #1477)

stratosphere/boot/source/boot_battery_driver.hpp

@@ -53,8 +53,8 @@ namespace ams::boot {
                 return powctl::GetBatteryAverageVCell(out, s_battery_session);
             }
 
-            Result GetOpenCircuitVoltage(int *out) {
-                return powctl::GetBatteryOpenCircuitVoltage(out, s_battery_session);
+            Result GetVoltageFuelGaugePercentage(float *out) {
+                return powctl::GetBatteryVoltageFuelGaugePercentage(out, s_battery_session);
             }
 
             Result GetAverageCurrent(int *out) {