* Adding support for QNN subtract op
* Fixing typo.
* Fixing typo.
* Fixing lint.
* Addressing review comments.
* Renaming variables as per convention and renamed QnnBinaryOpTypes -> QnnBinaryOpType
* Renaming QnnBinaryOpType to QnnBinaryOpTensorType which now takes the index you want to extract to make the code more readable.
* Fixing lint.
* Moving common code to macro.
* Fixing alignment.
* Fixing typo.
* Fixing lint.
* Renaming method to pass CI.
