[rocm-libraries] ROCm/rocm-libraries#4837 (commit 6316035)

[CK TILE] Unification of sparse MFMA/WMMA policy structs (#4837)

## Motivation

The existing unification work supports DENSE intrinsics. In this PR we
enable support for SPARSE as well as SCALE intrinsics and add an example
SPARSE implementation.

## Technical Details

Mostly trivial changes. One framework change is that the desired
`MmaOpFamily` is passed to the `MmaDefaultSelector`. As my relevant
commit explains, we do not support a fallback family at the moment, but
it is something we can consider.

## Test Plan

Added a new test for the relevant sparse specializations.

## Test Result

Test should pass.

## Submission Checklist

- [x] Look over the contributing guidelines at
https://github.com/ROCm/ROCm/blob/develop/CONTRIBUTING.md#pull-requests.

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Signed-off-by: Chris Tsiaousis <chris.tsiaousis@streamhpc.com>