conf: re-situate <bandwidth> element in <interface>

This moves the call to virNetDevBandwidthFormat() in
virDomainNetDefFormat() to be called right after the call to
virNetDevVPortProfileFormat(), so that a single chunk of that function
can be placed inside an if that conditionally calls
virDomainActualNetDefContentsFormat() instead (next patch). The
re-ordering necessitates modifying a couple of test data files.

src/conf/domain_conf.c

@@ -15599,6 +15599,9 @@ virDomainNetDefFormat(virBufferPtr buf,
         return -1;
     if (virNetDevVPortProfileFormat(def->virtPortProfile, buf) < 0)
         return -1;
+    if (virNetDevBandwidthFormat(def->bandwidth, buf) < 0)
+        return -1;
+
     virBufferEscapeString(buf, "<script path='%s'/>\n",
                           def->script);
     if (def->ifname &&
@@ -15651,9 +15654,6 @@ virDomainNetDefFormat(virBufferPtr buf,
                           virDomainNetInterfaceLinkStateTypeToString(def->linkstate));
     }
 
-    if (virNetDevBandwidthFormat(def->bandwidth, buf) < 0)
-        return -1;
-
     virBufferAdjustIndent(buf, -6);
 
     if (virDomainDeviceInfoFormat(buf, &def->info,

tests/qemuhotplugtestdata/qemuhotplug-console-compat-2+console-virtio.xml

@@ -59,12 +59,12 @@
     <interface type='network'>
       <mac address='52:54:00:ea:35:6f'/>
       <source network='default'/>
-      <target dev='vnet0'/>
-      <model type='virtio'/>
       <bandwidth>
         <inbound average='4000' peak='8000' floor='200' burst='1024'/>
         <outbound average='4000' peak='8000' burst='1024'/>
       </bandwidth>
+      <target dev='vnet0'/>
+      <model type='virtio'/>
       <alias name='net0'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
     </interface>

tests/qemuxml2argvdata/qemuxml2argv-console-compat-2.xml

@@ -59,12 +59,12 @@
     <interface type='network'>
       <mac address='52:54:00:ea:35:6f'/>
       <source network='default'/>
-      <target dev='vnet0'/>
-      <model type='virtio'/>
       <bandwidth>
         <inbound average='4000' peak='8000' floor='200' burst='1024'/>
         <outbound average='4000' peak='8000' burst='1024'/>
       </bandwidth>
+      <target dev='vnet0'/>
+      <model type='virtio'/>
       <alias name='net0'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
     </interface>

tests/qemuxml2argvdata/qemuxml2argv-net-bandwidth.xml

@@ -45,11 +45,11 @@
     <interface type='network'>
       <mac address='52:54:00:24:a5:9f'/>
       <source network='default'/>
-      <model type='rtl8139'/>
       <bandwidth>
         <inbound average='1000' peak='4000' burst='1024'/>
         <outbound average='128' peak='256' burst='32768'/>
       </bandwidth>
+      <model type='rtl8139'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
     </interface>
     <serial type='pty'>