[rocm-libraries] ROCm/rocm-libraries#5323 (commit 5454e9e)

CK Tile MX GEMM Packing Improvement (#5323)

## Motivation

Reduce the scale loading size and also has better utilization of MFMA
scale selection.

## Technical Details

Add up the packing of mx scales.

## Test Plan

Use the existing test cases.

## Test Result

<!-- Briefly summarize test outcomes. -->

## Submission Checklist

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

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Co-authored-by: Sami Remes <samremes@amd.com>
Co-authored-by: Enrico Degregori <enrico@streamhpc.com>