added otp library
OTP return value cleanup
Added functionality to read serial
Added unique ID location
Added FMU command to read serial
Compiling in new functions
Improved file test, allowed abortion
Added UART5 DMA config for reliable IO updates
Merge branch 'master' of github.com:PX4/Firmware
Merge branch 'master' of github.com:PX4/Firmware
Allow to check IO CRC independent of the IO start status (retains the interface status, startet or unstarted
Merge branch 'checkcrc_nostart' into autostart_cleanup
Init scripts cleanup, WIP