auto-round

41943610 - update logic for compatibility with gptqmodel:exllamav2 backend (#1438)

update logic for compatibility with gptqmodel:exllamav2 backend (#1438) Signed-off-by: He, Xin3 <xin3.he@intel.com> Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> Co-authored-by: chen, suyue <suyue.chen@intel.com> (cherry picked from commit 86231c44ff492a1c08c1964315c97c49bbf106f4)