Update fambench_dlrm configs (#883)
Summary:
Instead of using dummy config, we should use realistic config for fambench_dlrm.
Note that some of the options in the realistic config are disabled because we currently don't support fbgemm and quantized mlp.
Runtime result:
```
$ python run.py fambench_dlrm -d cuda
Unable to import mlperf_logging, No module named 'mlperf_logging'
Running eval method from fambench_dlrm on cuda in eager mode.
GPU Time: 114.694 milliseconds
CPU Dispatch Time: 113.238 milliseconds
CPU Total Wall Time: 114.780 milliseconds
```
```
python run.py fambench_dlrm -d cuda -t train
Unable to import mlperf_logging, No module named 'mlperf_logging'
Running train method from fambench_dlrm on cuda in eager mode.
GPU Time: 344.140 milliseconds
CPU Dispatch Time: 289.747 milliseconds
CPU Total Wall Time: 344.274 milliseconds
```
Pull Request resolved: https://github.com/pytorch/benchmark/pull/883
Reviewed By: aaronenyeshi
Differential Revision: D35975894
Pulled By: xuzhao9
fbshipit-source-id: 23f637a8551a51b09eea03c2d4011e38470de139
