fs_spec: add 'pre_cal_xy_dist_threshold_relax_ratio' for motor test
fs_spec: add 'pre_cal_xy_dist_threshold_relax_ratio' for motor test

Signed-off-by: niql <56079c917c44b7bf8343f51e8548e6c4d5b1f9ff@gmail.com>

walkthetalk/libem,walkthetalk/libem,walkthetalk/libem