conf: Parse guestfwd channel device info again

https://bugzilla.redhat.com/show_bug.cgi?id=1610072

Due to historical reasons we were not parsing device info on
guestfwd channel. Sure, it doesn't make much sense to parse
<address/> but it surely makes sense to parse its alias (which
might be an user alias).

This reverts commit 47a3dd46
which fixed https://bugzilla.redhat.com/show_bug.cgi?id=1172526.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>
Reviewed-by: NAndrea Bolognani <abologna@redhat.com>

src/conf/domain_conf.c

@@ -12807,14 +12807,8 @@ virDomainChrDefParseXML(virDomainXMLOptionPtr xmlopt,
         }
     }
 
-    if (def->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_CHANNEL &&
-        def->targetType == VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_GUESTFWD) {
-        VIR_DEBUG("Ignoring device address for gustfwd channel");
-    } else if (virDomainDeviceInfoParseXML(xmlopt, node,
-                                           &def->info, flags) < 0) {
+    if (virDomainDeviceInfoParseXML(xmlopt, node, &def->info, flags) < 0)
         goto error;
-    }
-
 
     if (def->deviceType == VIR_DOMAIN_CHR_DEVICE_TYPE_SERIAL &&
         def->targetType == VIR_DOMAIN_CHR_SERIAL_TARGET_TYPE_USB &&