* fix vits dtype Signed-off-by: jiqing-feng <jiqing.feng@intel.com> * add tests Signed-off-by: jiqing-feng <jiqing.feng@intel.com> * use weight dtype Signed-off-by: jiqing-feng <jiqing.feng@intel.com> --------- Signed-off-by: jiqing-feng <jiqing.feng@intel.com>