sensor_accel_fifo increase to 32 samples

msg/sensor_accel_fifo.msg

@@ -8,6 +8,6 @@ float32 scale
 
 uint8 samples             # number of valid samples
 
-int16[16] x               # acceleration in the NED X board axis in m/s/s
-int16[16] y               # acceleration in the NED Y board axis in m/s/s
-int16[16] z               # acceleration in the NED Z board axis in m/s/s
+int16[32] x               # acceleration in the NED X board axis in m/s/s
+int16[32] y               # acceleration in the NED Y board axis in m/s/s
+int16[32] z               # acceleration in the NED Z board axis in m/s/s

src/lib/drivers/accelerometer/PX4Accelerometer.hpp

@@ -74,9 +74,9 @@ public:
 		uint8_t samples; // number of samples
 		float dt; // in microseconds
 
-		int16_t x[16];
-		int16_t y[16];
-		int16_t z[16];
+		int16_t x[32];
+		int16_t y[32];
+		int16_t z[32];
 	};
 	static_assert(sizeof(FIFOSample::x) == sizeof(sensor_accel_fifo_s::x), "FIFOSample.x invalid size");
 	static_assert(sizeof(FIFOSample::y) == sizeof(sensor_accel_fifo_s::y), "FIFOSample.y invalid size");