Qualcomm AI Engine Direct - OSS models breakage fix (#10191)

### Summary
 - Fastvit breakage fix
 - ConvFormer breakage fix
 - Changed dataset for Edsr due to unavailable dataset link
 - Add test case for ConvertSquareToPow pass
 
### Test plan
```bash
python ./examples/qualcomm/oss_scripts/fastvit.py -m ${soc} -b build-android -H ${host_id} -s ${device_id} --oss_repo ${Path_to_oss_repo} --pretrained_weight ${Path_to_pretrained_weight} -d ${Path_to_dataset_dir}
```
```bash
python ./examples/qualcomm/oss_scripts/conv_former.py -m ${soc} -b build-android -H ${host_id} -s ${device_id} -d ${Path_to_dataset_dir}
```


cc @cccclai @cbilgin