FSL 6.0 build script updated with additional required installation step.
FSL 6.0 build script updated with additional required installation step.

UCL-RITS/rcps-buildscripts,UCL-RITS/rcps-buildscripts,UCL-RITS/rcps-buildscripts,UCL-RITS/rcps-buildscripts,UCL-RITS/rcps-buildscripts