Fix copy paste

src/core/hle/service/ptm/ptm.h

@@ -72,7 +72,7 @@ void GetBatteryLevel(Interface* self);
 void GetBatteryChargeState(Interface* self);
 
 /**
- * PTM::GetBatteryChargeState service function
+ * PTM::GetTotalStepCount service function
  *  Outputs:
  *      1 : Result of function, 0 on success, otherwise error code
  *      2 : Output of function, * = total step count