libs: add ongoing work to facilitate hactool rewrite

libraries/libstratosphere/source/fssystem/fssystem_aes_ctr_storage.cpp

@@ -32,7 +32,7 @@ namespace ams::fssystem {
 
     template<typename BasePointer>
     AesCtrStorage<BasePointer>::AesCtrStorage(BasePointer base, const void *key, size_t key_size, const void *iv, size_t iv_size) : m_base_storage(std::move(base)) {
-        AMS_ASSERT(base != nullptr);
+        AMS_ASSERT(m_base_storage != nullptr);
         AMS_ASSERT(key  != nullptr);
         AMS_ASSERT(iv   != nullptr);
         AMS_ASSERT(key_size == KeySize);