Call ngraph_malloc instead of malloc so it throws if out of memory (#3681)

src/ngraph/runtime/aligned_buffer.cpp

@@ -44,7 +44,7 @@ runtime::AlignedBuffer::AlignedBuffer(size_t byte_size, size_t alignment, Alloca
     }
     else
     {
-        m_allocated_buffer = static_cast<char*>(malloc(allocation_size));
+        m_allocated_buffer = static_cast<char*>(ngraph_malloc(allocation_size));
     }
     m_aligned_buffer = m_allocated_buffer;
     size_t mod = size_t(m_aligned_buffer) % alignment;