Merge changes from topic "rmm_sme"

* changes:
  test(rme): intermittently switch to Realm while NS doing SSVE ops
  feat(rme): add tests to check NS SME ID registers and configurations
  feat(sme): add sme helper routines and add streaming sve support
  fix(sme): use rdsvl instead of rdvl
  fix(sme): enable SME/SME2 during arch init