* Update ChibiOS
* Fix coexistance of ChibiOS and our flash drivers
* Add 'int' = internal prefix for all on-chip flash functions
This avoid conflict with ChibiOS functions available after
enabling HAL_USE_EFL
* Exclude ChibiOS flash driver from bootloader
* Makefile magic?
* Kinetis: fix build after ChibiOS update and switching to SMART_BUILD
* Bootloader now use SMART_BUILD too