Merge changes from topic "ti-k3-checks-and-refactor" into integration

* changes:
  fix(ti): fix typo in boot authentication message name
  refactor(ti): remove empty validate_ns_entrypoint function
  refactor(ti): use console_set_scope() rather than empty function hack
  refactor(ti): factor out common board code into common files
  feat(ti): add PSCI system_off support
  feat(ti): do not handle EAs in EL3
  feat(ti): set snoop-delayed exclusive handling on A72 cores
  feat(ti): disable L2 dataless UniqueClean evictions
  feat(ti): set L2 cache ECC and and parity on A72 cores
  feat(ti): set L2 cache data ram latency on A72 cores to 4 cycles