Fixed revhistory date in both documents

The latest revhistory date shows the date of the latest major content
update. As we added the entire virtualization section, the date needed
to be adjusted.

Author: chabowski

xml/MAIN-SBP-AMD-EPYC-4-SLES15SP4.xml

@@ -105,10 +105,16 @@
     </cover>
 
     <revhistory xml:id="rh-art-sbp-amdepyc4-sles15sp4">
+      <revision>
+        <date>2025-04-24</date>
+        <revdescription>
+          <para> Virtualization section added</para>
+        </revdescription>
+      </revision>     
       <revision>
         <date>2023-06-20</date>
         <revdescription>
-          <para> Latest version of AMD EPYC processors</para>
+          <para> First version of AMD EPYC 4 processors document</para>
         </revdescription>
       </revision>
     </revhistory>

xml/MAIN-SBP-AMD-EPYC-5-SLES15SP6.xml

@@ -42,7 +42,6 @@
 
     <meta name="platform">SUSE Linux Enterprise 15 SP6</meta>
     <meta name="platform">AMD EPYC™ 9005 Series Processors</meta>
-    <meta name="published">2024-11-15</meta>
 
     <authorgroup>
       <author>
@@ -126,8 +125,23 @@
         </imageobject>
         </mediaobject>-->
     </cover>
-
-    <date>2024-11-15</date>
+    
+    
+    <revhistory xml:id="rh-art-sbp-amdepyc4-sles15sp4">
+      <revision>
+        <date>2025-04-24</date>
+        <revdescription>
+          <para> Virtualization section added</para>
+        </revdescription>
+      </revision>     
+      <revision>
+        <date>2024-11-15</date>
+        <revdescription>
+          <para> First version of AMD EPYC 5 processors document</para>
+        </revdescription>
+      </revision>
+    </revhistory>
+    
 
     <abstract>