Updated Fig 31 to remove the unused Destination ID field for ATS.PRGR

src/iommu_in_memory_queues.adoc

@@ -574,7 +574,7 @@ formatted as follows:
   {bits: 9, name: 'Page Request Group Index'},
   {bits: 3, name: '0'},
   {bits: 4, name: 'Response Code'},
-  {bits: 16, name: 'Destination ID'},
+  {bits: 16, name: '0'},
 ], config:{lanes: 2, hspace:1024, fontsize:12}}
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