[CPU] fix bug in PR 23179 (#23314)
### Details:
- *fix bug in https://github.com/openvinotoolkit/openvino/pull/23179 ,
the flat condition is not right*
- *add test case for ic < 4 with layout nchw8c->nchw8c on sse42*
- the onednn PR https://github.com/openvinotoolkit/oneDNN/pull/235
### Tickets:
- *[CVS-125793](https://jira.devtools.intel.com/browse/CVS-125793)*
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Signed-off-by: HU Yuan2 <yuan2.hu@intel.com>
