mpu6000: allow disabling of on-sensor low pass filter
mpu6000: allow disabling of on-sensor low pass filter

used for vibration testing

mcgill-robotics/Firmware,mje-nz/PX4-Firmware,Aerotenna/Firmware,dagar/Firmware,mje-nz/PX4-Firmware,acfloria/Firmware,krbeverx/Firmware,mje-nz/PX4-Firmware,krbeverx/Firmware,dagar/Firmware,PX4/Firmware,mcgill-robotics/Firmware,mje-nz/PX4-Firmware,krbeverx/Firmware,Aerotenna/Firmware,jlecoeur/Firmware,acfloria/Firmware,krbeverx/Firmware,dagar/Firmware,dagar/Firmware,dagar/Firmware,dagar/Firmware,acfloria/Firmware,acfloria/Firmware,jlecoeur/Firmware,jlecoeur/Firmware,Aerotenna/Firmware,mje-nz/PX4-Firmware,krbeverx/Firmware,darknight-007/Firmware,acfloria/Firmware,mcgill-robotics/Firmware,PX4/Firmware,jlecoeur/Firmware,jlecoeur/Firmware,dagar/Firmware,krbeverx/Firmware,darknight-007/Firmware,mje-nz/PX4-Firmware,jlecoeur/Firmware,acfloria/Firmware,mcgill-robotics/Firmware,PX4/Firmware,krbeverx/Firmware,darknight-007/Firmware,Aerotenna/Firmware,PX4/Firmware,PX4/Firmware,mcgill-robotics/Firmware,PX4/Firmware,jlecoeur/Firmware,mcgill-robotics/Firmware,darknight-007/Firmware,Aerotenna/Firmware,Aerotenna/Firmware,Aerotenna/Firmware,jlecoeur/Firmware,darknight-007/Firmware,PX4/Firmware,mcgill-robotics/Firmware,mje-nz/PX4-Firmware,acfloria/Firmware