Cherry pick `Nemo 2.0 ckpt support in TRT-LLM export (10891)` into `r2.0.0`
[🤖]: Hi @oyilmaz-nvidia 👋,<br><br>we've cherry picked #10891 into `r2.0.0` for you! 🚀<br><br>Please review and approve this cherry pick by your convenience\!