Add workload variants

[priyakasimbeg]

Add workload variants for the base workloads.

This is a tracking issue. 7/8 variants along with model-diff tests have been added already.

Remaining work is to:

• [x] Submit DeepSpeech workloads without OOMs.
• [ ] Run all variants e2e.

[priyakasimbeg]

Remaining tasks.

Fix

• [x] https://github.com/mlcommons/algorithmic-efficiency/issues/654
• [x] https://github.com/mlcommons/algorithmic-efficiency/issues/662
• [x] Criteo embed init scale workload repository variant error

Rerun variants for:

• [x] criteo embed init scale
• [x] criteo resnet
• [x] imagenet_resnet_silu
• [x] imagenet_resnet_gelu
• [x] vit GLU
• [x] conformer gelu
• [x] conformer layernorm
• [x] conformer attention temp
• [x] deepspeech specaug
• [x] wmt attention temp

[priyakasimbeg]

Pending variant reruns with correct hyperparamters for:

• [x] deepspeech_norm_and_spec_aug
• [x] deepspeech_tanh
• [x] deepspeech_no_resnet