Fix potential overflow in combined ESC sensor data

The calculated combined ESC sensor data could potentially overflow in some extreme cases and the problem would be more likely in cases with more than 4 motors.

src/main/sensors/esc_sensor.h

@@ -31,8 +31,8 @@ typedef struct {
     uint8_t dataAge;
     int8_t temperature;  // C degrees
     int16_t voltage;     // 0.01V
-    int16_t current;     // 0.01A
-    int16_t consumption; // mAh
+    int32_t current;     // 0.01A
+    int32_t consumption; // mAh
     int16_t rpm;         // 0.01erpm
 } escSensorData_t;