remove silu for CogView4 (#12150)
* CogView4: remove SiLU in final AdaLN (match Megatron); add switch to AdaLayerNormContinuous; split temb_raw/temb_blocks
* CogView4: remove SiLU in final AdaLN (match Megatron); add switch to AdaLayerNormContinuous; split temb_raw/temb_blocks
* CogView4: remove SiLU in final AdaLN (match Megatron); add switch to AdaLayerNormContinuous; split temb_raw/temb_blocks
* CogView4: use local final AdaLN (no SiLU) per review; keep generic AdaLN unchanged
* re-add configs as normal files (no LFS)
* Apply suggestions from code review
* Apply style fixes
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Co-authored-by: 武嘉涵 <lambert@wujiahandeMacBook-Pro.local>
Co-authored-by: Aryan <contact.aryanvs@gmail.com>
Co-authored-by: Aryan <aryan@huggingface.co>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
