Bluetooth: Implemented new DIS characteristics

Implemented new DIS characteristics:
    - UDI for medical devices
    - IEEE 11073-20601 Regulatory Certification Data List
    - System ID

Also fixed buffer overflow bug when assigning too long DIS string literals

Signed-off-by: Simen Eilevstjønn <simen.eilevstjonn@laerdal.com>
3 files changed