news: Update for the ccf-assist pSeries feature

Reviewed-by: NCole Robinson <crobinso@redhat.com>
Signed-off-by: NDaniel Henrique Barboza <danielhb413@gmail.com>

docs/news.xml

@@ -50,6 +50,15 @@
           <code>ramfb</code> standalone device in qemu.
         </description>
       </change>
+      <change>
+        <summary>
+          qemu: Implement the ccf-assist pSeries feature
+        </summary>
+        <description>
+          Users can now decide whether ccf-assist (Count Cache Flush Assist)
+          support should be available to pSeries guests.
+        </description>
+      </change>
     </section>
     <section title="Improvements">
     </section>