[dynamo+aten] Enable embedding_bag_byte_unpack + meta kernel impl (#107937)
Summary:
```
torch._dynamo.exc.Unsupported: unsupported operator: quantized.embedding_bag_byte_unpack.default
```
Differential Revision: D48652953
Pull Request resolved: https://github.com/pytorch/pytorch/pull/107937
Approved by: https://github.com/houseroad
