Correct table header formating to include vertical text

Signed-off-by: Jeff Scheel <scheel@us.ibm.com>

Platform/ch_io_topology.xml

@@ -885,9 +885,9 @@ xml:lang="en">
         <title>PCI Express Optional Feature Usage in LoPAR Platforms </title>
         <tgroup cols="4">
           <colspec colname="c1" colwidth="20*" align="center"/>
-          <colspec colname="c2" colwidth="10*" align="center"/>
-          <colspec colname="c3" colwidth="10*" align="center"/>
-          <colspec colname="c4" colwidth="60*"/>
+          <colspec colname="c2" colwidth="5*" align="center"/>
+          <colspec colname="c3" colwidth="5*" align="center"/>
+          <colspec colname="c4" colwidth="70*"/>
           <thead valign="middle">
             <row>
               <entry morerows="1">
@@ -907,10 +907,10 @@ xml:lang="en">
               </entry>
             </row>
             <row>
-              <entry>
+              <entry><?dbfo orientation="90"?><?dbfo rotated-width="0.5in"?>
                 <para>Base</para>
               </entry>
-               <entry>
+               <entry><?dbfo orientation="90"?><?dbfo rotated-width="0.5in"?>
                 <para>IBM Server</para>
               </entry>
            </row>

Platform/ch_system_reqs.xml

@@ -1613,9 +1613,9 @@ ELSE
       <title>LoPAR Optional Features </title>
       <tgroup cols="4">
         <colspec colname="c1" colwidth="30*" align="center"/>
-        <colspec colname="c2" colwidth="10*" align="center"/>
-        <colspec colname="c3" colwidth="10*" align="center"/>
-        <colspec colname="c4" colwidth="50*"/>
+        <colspec colname="c2" colwidth="5*" align="center"/>
+        <colspec colname="c3" colwidth="5*" align="center"/>
+        <colspec colname="c4" colwidth="60*"/>
         <thead valign="middle">
           <row>
             <entry morerows="1">
@@ -1635,12 +1635,12 @@ ELSE
             </entry>
           </row>
           <row>
-            <entry>
+            <entry><?dbfo orientation="90"?><?dbfo rotated-width="0.5in"?>
               <para>
                 <emphasis role="bold">Base</emphasis>
               </para>
             </entry>
-            <entry>
+            <entry><?dbfo orientation="90"?><?dbfo rotated-width="0.5in"?>
               <para>
                 <emphasis role="bold">IBM Server</emphasis>
               </para>