[rocm-libraries] ROCm/rocm-libraries#5387 (commit 0c259bd)

[CK][CK Tile] Grouped Convolution Backward Weight set of
 fixes (#5387)
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## Motivation

Grouped Convolution Backward Weight split k fixes for CK tile kernels

## Technical Details

- get k batch from kargs to get deduced k batch
- multiply zeroing size by data type size
- disable v6 (producing a incorrect results)

## Test Plan

test_grouped_convnd_bwd_weight_tile

## Test Result

Pass

## Submission Checklist

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

experimental/grouped_convolution_tile_instances/generate_instances.py

@@ -434,7 +434,9 @@ def parse_bwd_weight_instances(instances, problem_name):
         if check_vectors(a_scalar_per_vector, b_scalar_per_vector, c_scalar_per_vector) == False:
             print(f"Skipping instance {instance_id} with irregular load since it's not supported yet.")
             continue
-
+        if pipeline_version == "V6":
+            print(f"Skipping instance {instance_id} with V6 since it's not supported yet.")
+            continue
 
         conv = ConvInstanceTemplateParams(
             spec,