[ROCm] Enable FSDP BF16 comm hooks unit tests (#97517)
This PR enables the following unit tests in FSDP feature on ROCm.
```
test_bf16_hook_has_wrapping_False_sharding_strategy_ShardingStrategy_FULL_SHARD
test_bf16_hook_has_wrapping_False_sharding_strategy_ShardingStrategy_NO_SHARD
test_bf16_hook_has_wrapping_False_sharding_strategy_ShardingStrategy_SHARD_GRAD_OP
test_bf16_hook_has_wrapping_True_sharding_strategy_ShardingStrategy_FULL_SHARD
test_bf16_hook_has_wrapping_True_sharding_strategy_ShardingStrategy_NO_SHARD
test_bf16_hook_has_wrapping_True_sharding_strategy_ShardingStrategy_SHARD_GRAD_OP
```
Pull Request resolved: https://github.com/pytorch/pytorch/pull/97517
Approved by: https://github.com/pruthvistony, https://github.com/jeffdaily, https://github.com/jithunnair-amd, https://github.com/malfet
