fix utils_parcel_test codex

Signed-off-by: hongtao <hongtao11@huawei.com>

base/test/unittest/common/utils_parcel_test.cpp

@@ -87,6 +87,9 @@ bool SendData(void *&buffer, size_t size, const uint8_t *data)
         return false;
     }
     buffer = malloc(size);
+    if (buffer == nullptr) {
+        return false;
+    }
     if (memcpy_s(buffer, size, data, size) != EOK) {
         return false;
     }