[Core] Support char* in the replace_stl::ostream (#3516)

lite/utils/replace_stl/stream.cc

@@ -53,6 +53,12 @@ ostream& ostream::operator<<(const char* obj) {
   return *this;
 }
 
+template <>
+ostream& ostream::operator<<(char* const& obj) {
+  data_ = data_ + std::string(obj);
+  return *this;
+}
+
 template <>
 ostream& ostream::operator<<(const char& obj) {
   data_ = data_ + obj;