[BE] Make internal torchao.float8 functions private

[danielvegamyhre]

• Make internal float8 functions private
• Add alias to old public name for the util functions which I found external repos using

[pytorch-bot]

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❌ 1 New Failure

As of commit 655fbd7 with merge base 0d9631b ():

NEW FAILURE - The following job has failed:

• Run Float8 Tests / test (SM-89, linux.g6.4xlarge.experimental.nvidia.gpu, --pre torch --index-url https://download.p... / linux-job (gh)
  RuntimeError: Command docker exec -t 34ee3bb4ed70a642ab98fbcd55fc01345be0cae98c373858c318e49af2964a6b /exec failed with exit code 1

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[jerryzh168]

anything used by other people?

[danielvegamyhre]

anything used by other people?

Yes, I did an internal search for each function and added aliases to the old/public name for those that had users.