news: Document rom.enabled attribute for PCI devices

Signed-off-by: NAndrea Bolognani <abologna@redhat.com>

docs/news.xml

@@ -92,6 +92,16 @@
           filters which can be a bit painful.
         </description>
       </change>
+      <change>
+        <summary>
+          qemu: Optionally disable ROM loading for PCI devices
+        </summary>
+        <description>
+          The <code>enabled</code> attribute of the <code>rom</code>
+          sub-element, usable for PCI devices, can be used for situations
+          where loading a PCI ROM is not desiderable.
+        </description>
+      </change>
     </section>
     <section title="Bug fixes">
       <change>