chipset/zephyr: update instructions for nrf5340 dk / adk as hci controller
chipset/zephyr: fix board for nrf5340 adk usb dongle doc
chipset/zephyr: fix paths in nRF5340 dongle readme
chipset/zephyr: update nRF5340 as HCI controller for SoftDevice from nRF Connect SDK 2.6
chipset/zephyr: add guide to turn nrf5340 development boards into HCI USB dongles
license: update text
MISRAC2012-Rule-14.4_d: use while(true) instead of while(1)
Use BTSTACK_FILE__ without __ prefix (MISRAC2012-Rule-21.1)
Use FILENAME_H as include guard (MISRAC2012-Rule-21.1)
chipset/zephyr: fix commpile warning
posix-h4-zephyr: read static address via vendor specific command and use it