Fix Makefile MCU selection
Fix Makefile MCU selection

Khan-drone/ahrs-core,Khan-drone/flight-control,Khan-drone/ahrs-core,Khan-drone/flight-control,Khan-drone/ahrs-core,Khan-drone/flight-control,Khan-drone/flight-control,Khan-drone/flight-control,Khan-drone/flight-control,Khan-drone/ahrs-core,Khan-drone/ahrs-core,Khan-drone/ahrs-core