Cleanup ACC hardware enum so that 'None' is always '1' and doesn't

change every time a new sensor is added.  All the sensor enum values are
now aligned.

src/main/sensors/acceleration.h

@@ -20,15 +20,15 @@
 // Type of accelerometer used/detected
 typedef enum {
     ACC_DEFAULT = 0,
-    ACC_ADXL345 = 1,
-    ACC_MPU6050 = 2,
-    ACC_MMA8452 = 3,
-    ACC_BMA280 = 4,
-    ACC_LSM303DLHC = 5,
-    ACC_SPI_MPU6000 = 6,
-    ACC_SPI_MPU6500 = 7,
-    ACC_FAKE = 8,
-    ACC_NONE = 9
+    ACC_NONE = 1,
+    ACC_ADXL345 = 2,
+    ACC_MPU6050 = 3,
+    ACC_MMA8452 = 4,
+    ACC_BMA280 = 5,
+    ACC_LSM303DLHC = 6,
+    ACC_SPI_MPU6000 = 7,
+    ACC_SPI_MPU6500 = 8,
+    ACC_FAKE = 9,
 } accelerationSensor_e;
 
 extern sensor_align_e accAlign;