Fix HELLO check that HULK bss and stack region could be found

src/hello/hello.d

@@ -229,7 +229,7 @@ private void get_memory_map(ulong * bss_phys, ulong * stack_phys, ulong * physic
         }
     }
     bootinfo().memory_map_count = count;
-    if ((!found_bss) && (!found_stack))
+    if ((!found_bss) || (!found_stack))
     {
         for (;;) {}
     }