Parameter update - Rename variables in lib

using paramter_update.py script

src/lib/drivers/accelerometer/PX4Accelerometer.cpp

@@ -49,7 +49,7 @@ PX4Accelerometer::PX4Accelerometer(uint32_t device_id, uint8_t priority, enum Ro
 
 	// set software low pass filter for controllers
 	updateParams();
-	configure_filter(_filter_cutoff.get());
+	configure_filter(_param_imu_accel_cutoff.get());
 
 	// force initial publish to allocate uORB buffer
 	// TODO: can be removed once all drivers are in threads

src/lib/drivers/accelerometer/PX4Accelerometer.hpp

@@ -82,7 +82,7 @@ private:
 	unsigned	_sample_rate{1000};
 
 	DEFINE_PARAMETERS(
-		(ParamFloat<px4::params::IMU_ACCEL_CUTOFF>) _filter_cutoff
+		(ParamFloat<px4::params::IMU_ACCEL_CUTOFF>) _param_imu_accel_cutoff
 	)
 
 };

src/lib/drivers/gyroscope/PX4Gyroscope.cpp

@@ -49,7 +49,7 @@ PX4Gyroscope::PX4Gyroscope(uint32_t device_id, uint8_t priority, enum Rotation r
 
 	// set software low pass filter for controllers
 	updateParams();
-	configure_filter(_filter_cutoff.get());
+	configure_filter(_param_imu_gyro_cutoff.get());
 
 	// force initial publish to allocate uORB buffer
 	// TODO: can be removed once all drivers are in threads

src/lib/drivers/gyroscope/PX4Gyroscope.hpp

@@ -82,7 +82,7 @@ private:
 	unsigned	_sample_rate{1000};
 
 	DEFINE_PARAMETERS(
-		(ParamFloat<px4::params::IMU_GYRO_CUTOFF>) _filter_cutoff
+		(ParamFloat<px4::params::IMU_GYRO_CUTOFF>) _param_imu_gyro_cutoff
 	)
 
 };