[rocm-libraries] ROCm/rocm-libraries#8208 (commit 7240d71)

[CK] Fix scale init in profile_grouped_conv_fwd_outelementop
 (#8208)

## Motivation

Wrong scale initialization caused random errors on CI.

## Technical Details

InvScale was initialized by 0 what caused nans during division. At now
zero are excluded from randing.

## Test Plan

TestGroupedConvndFwdConvInvscale3d

## Test Result

Passed in 100 runs

## Submission Checklist

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

AICK-1400