Merge changes from topic "refactor-hw-config-load" into integration

* changes:
  docs(fvp): update loading addresses of HW_CONFIG
  docs(fconf): update device tree binding for FCONF
  feat(fvp): update HW_CONFIG DT loading mechanism
  refactor(st): update set_config_info function call
  refactor(fvp_r): update set_config_info function call
  refactor(arm): update set_config_info function call
  feat(fconf): add NS load address in configuration DTB nodes