[ORT 1.18.2] Cherry Pick Pad Optimizations + Update DML to 1.15.1 - #21670

[ORT 1.18.2] Cherry Pick Pad Optimizations + Update DML to 1.15.1#21670

Sumit Agarwal (sumitsays) merged 21 commits into

rel-1.18.2microsoft/onnxruntime:rel-1.18.2from

user/sumita/cherrypick-padmicrosoft/onnxruntime:user/sumita/cherrypick-padCopy head branch name to clipboard