[mlir][tosa] Refactor tosa.resize

Moved to using helper lambdas to avoid code repetition. IR needed to be reordered to
accommodate which should be the only changes to the existing tests.

This changes the quantized test to target `i48` types to guarantee types are extended
correctly when necessary.

Reviewed By: jpienaar

Differential Revision: https://reviews.llvm.org/D136500