[QNN] Fix order of operations in qnn.quantize slightly to prevent undefined behavior (#9558)
[QNN] Fix order of operations in qnn.quantize slightly to prevent undefined behavior (#9558)

* switch order of quantizations

* add back in round
Laurawly/tvm-1,Laurawly/tvm-1,dmlc/tvm,Laurawly/tvm-1,dmlc/tvm,dmlc/tvm,Laurawly/tvm-1,Laurawly/tvm-1,Laurawly/tvm-1,dmlc/tvm,dmlc/tvm,dmlc/tvm,Laurawly/tvm-1,dmlc/tvm,Laurawly/tvm-1,Laurawly/tvm-1,Laurawly/tvm-1,dmlc/tvm,dmlc/tvm