cmake HAVE_ATOMIC_CAS_32 examples

alibaba/AliSQL storage/innobase/CMakeLists.txt :223 

CHECK_FUNCTION_EXISTS(atomic_cas_32 HAVE_ATOMIC_CAS_32)

alibaba/AliSQLBackup storage/innobase/CMakeLists.txt :205 

CHECK_FUNCTION_EXISTS(atomic_cas_32 HAVE_ATOMIC_CAS_32)