[TorchToLinalg] Fix multi batch matmul conversion to Linalg#4319

mingzheTerapines wants to merge 2 commits intollvm:mainllvm/torch-mlir:mainfrom

mingzheTerapines:fix/multi-batch-matmul-to-linalgmingzheTerapines/torch-mlir:fix/multi-batch-matmul-to-linalgCopy head branch name to clipboard