Llama 3.3 (#14)

* Llama 3.3 70B (pytorch#2124)

* Llama 3.3 readme updates (pytorch#2125)

* update configs (pytorch#2107)

Co-authored-by: Felipe Mello <[email protected]>

* Reduce logging output for distributed KD (pytorch#2120)

* Support Early Exit Loss and/or Layer Dropout (pytorch#1076)

Co-authored-by: ebsmothers <[email protected]>

* Update checkpointing directory (pytorch#2074)

Co-authored-by: Felipe Mello <[email protected]>
Co-authored-by: vancoyendall <[email protected]>

* pass correct arg (pytorch#2127)

Co-authored-by: Felipe Mello <[email protected]>

* update configs (pytorch#2128)

Co-authored-by: Felipe Mello <[email protected]>

* fix qat_lora_test (pytorch#2131)

Co-authored-by: Felipe Mello <[email protected]>

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Co-authored-by: Philip Bontrager <[email protected]>
Co-authored-by: ebsmothers <[email protected]>
Co-authored-by: Felipe Mello <[email protected]>
Co-authored-by: Felipe Mello <[email protected]>
Co-authored-by: Joe Cummings <[email protected]>
Co-authored-by: Mostafa Elhoushi <[email protected]>
Co-authored-by: vancoyendall <[email protected]>