Fix shared config mutation issue in flash_attn_from_config (#45678)
* Fix shared config mutation issue in flash_attn_from_config
Signed-off-by: Liu, Kaixuan <kaixuan.liu@intel.com>
* update code
Signed-off-by: Liu, Kaixuan <kaixuan.liu@intel.com>
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Signed-off-by: Liu, Kaixuan <kaixuan.liu@intel.com>