Refer to CSS_2_1 5.7.2.1 "Non-Boolean comparisons must use a
compare operator (==, !=, >, < >=, <=).", use compare operator
for the non-boolean comparisons.
Cc: Jian Wang <jian.j.wang@intel.com> Cc: Ting Ye <ting.ye@intel.com> Signed-off-by: Zhichao Gao <zhichao.gao@intel.com> Reviewed-by: Jian J Wang <jian.j.wang@intel.com>