docs: switch to using 'id' attribute instead of 'name' for links

The 'name' attribute on <a...> elements is deprecated in favour
of the 'id' attribute which is allowed on any element. HTML5
drops 'name' support entirely.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>

docs/drvphyp.html.in

@@ -10,7 +10,7 @@
     </p>
 
 
-    <h2><a name="project">Project Links</a></h2>
+    <h2><a id="project">Project Links</a></h2>
     <ul>
       <li>
         The <a href="http://www-03.ibm.com/systems/power/software/virtualization/index.html">IBM
@@ -19,7 +19,7 @@
     </ul>
 
 
-    <h2><a name="uri">Connections to the PowerVM driver</a></h2>
+    <h2><a id="uri">Connections to the PowerVM driver</a></h2>
     <p>
         Some example remote connection URIs for the driver are:
     </p>
@@ -38,7 +38,7 @@ phyp://user@ivm/system (IVM connection)
     </p>
 
 
-    <h3><a name="uriformat">URI Format</a></h3>
+    <h3><a id="uriformat">URI Format</a></h3>
     <p>
         URIs have this general form (<code>[...]</code> marks an
         optional part, <code>{...|...}</code> marks a mandatory choice).