Tools: rename a file with a space in it

spaces in filenames play havoc with unix tools
HAL_Linux: fixed BusTest build
Tools: new dts file for SPI on PXF cape
AP_HAL: added LSM9DSO_G SPI device
HAL_Linux: setup for all 6 SPI devices for PXF cape
AP_InertialSensor: use LSM9DSO_AM device
Tools: fixed DTS Makefile
Tools: added dtbo for PXF cape
Tools: remove unused Linux device tree files
AP_Param: added a method for example programs to set parameters in objects
AP_RangeFinder: added an example program
AP_RangeFinder: removed old test code
Copter: bug fix for throttle failsafe

Missing bracket could cause throttle failsafe to be triggered even when
disabled or motors disarmed
AP_RangeFinder: Removed the use of type Auto
AP_RangeFinder: Changed sonar to rangefinder in the parameter descriptions
ArduCopter Parameters: Changed the SONAR prefix to RNGFND, renamed SONAR_GAIN, and CH6-8 value descriptions
ArduPlane Parameters: Changed the SONAR prefix to RNGFND
Ardurover2 Parameters: Changed the SONAR prefix to RNGFND and renamed the previous SONAR_ parameters
AP_RangeFinder_PX4: Added the destructor to close the file descriptor
AP_RangeFinder_PulsedLightLRF: Modified to do a 2 byte transfer for the distance read