[mlir][sparse][gpu] derive type of cuSparse op

This no longer assumes just F64 output.

Note, however, that it will be cleaner to carry the data type in the corresponding operation (rather than tracking operands). That will also allow for mixed type cases, where operands and result type are different

This will be done in a follow revision where the result type is carried by the SpMV/SpMM op itself (and friends).

Reviewed By: Peiming

Differential Revision: https://reviews.llvm.org/D151005