Add corstone-300 and corstone-310 platforms

* Add V8.1M arch support
* Fix watchdog enable
* Add cmsdk uart baudrate setup
* Fix ident in modified files (\t -> 4*whitespace)v
21 files changed
tree: 363aaf4b19aa73608ddea4f2d08fb0eb98f70f82
  1. api-tests/
  2. secure-debug/
  3. tbsa-v8m/
  4. .gitignore
  5. LICENSE.md
  6. README.md