fix new protocal max temp error

Signed-off-by: huhui <huhui@sharkgulf.com>

Application/app/bms_message.c

@@ -72,7 +72,7 @@ void process_bms_message(can_frame_t *frame, int len){
 			bresp.energy = get_soc()->coulomb_now - get_soc()->coulomb_min;
 			bresp.pack_current = measure_value()->load_current;
 			bresp.pack_voltage = bms_state_get()->pack_voltage;
-			bresp.max_temp = 0;
+			bresp.max_temp = -100;
 			for (int i = 0; i < PACK_TEMPS_NUM; i ++){
 				if (bresp.max_temp < measure_value()->pack_temp[i]){
 					bresp.max_temp = measure_value()->pack_temp[i];