domain: Fix PCI address decimal parsing regression

<hostdev> address parsing previously attempted to detect the number
base: currently it is hardcoded to base 16, which can break PCI
assignment via virt-manager. Revert to the previous behavior.

* src/conf/domain_conf.c: virDomainDevicePCIAddressParseXML, switch to
  virStrToLong_ui(bus, NULL, 0, ...) to autodetect base

src/conf/domain_conf.c

@@ -1079,28 +1079,28 @@ virDomainDevicePCIAddressParseXML(xmlNodePtr node,
     function = virXMLPropString(node, "function");
 
     if (domain &&
-        virStrToLong_ui(domain, NULL, 16, &addr->domain) < 0) {
+        virStrToLong_ui(domain, NULL, 0, &addr->domain) < 0) {
         virDomainReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                              _("Cannot parse <address> 'domain' attribute"));
         goto cleanup;
     }
 
     if (bus &&
-        virStrToLong_ui(bus, NULL, 16, &addr->bus) < 0) {
+        virStrToLong_ui(bus, NULL, 0, &addr->bus) < 0) {
         virDomainReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                              _("Cannot parse <address> 'bus' attribute"));
         goto cleanup;
     }
 
     if (slot &&
-        virStrToLong_ui(slot, NULL, 16, &addr->slot) < 0) {
+        virStrToLong_ui(slot, NULL, 0, &addr->slot) < 0) {
         virDomainReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                              _("Cannot parse <address> 'slot' attribute"));
         goto cleanup;
     }
 
     if (function &&
-        virStrToLong_ui(function, NULL, 16, &addr->function) < 0) {
+        virStrToLong_ui(function, NULL, 0, &addr->function) < 0) {
         virDomainReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                              _("Cannot parse <address> 'function' attribute"));
         goto cleanup;