update mbed-os
use mbedtls crypto pelion and updated mbedtls config to reduce size
enabled encryption for all target with external memory
update fota header size from 0x400 to 0x200
use armc6 to reduce code size for disco and nucleo 411 targets
still not final version as synced not from mcc nanoclient
update mbed-os use mbedtls crypto pelion and updated mbedtls config to reduce size enabled encryption for all target with external memory update fota header size from 0x400 to 0x200 use armc6 to reduce code size for disco and nucleo 411 targets
still not final version as synced not from mcc nanoclient