nodedev: avoid use of VIR_ERR_NO_* errors internally

These errors are demoted to debug statements[1] since they're only
intended to be used as return values for public APIs.  This makes it
difficult to debug the problem when something goes wrong since no error
message is logged. Switch instead to VIR_ERR_INTERNAL_ERROR so that the
error is logged as expected.

[1] See the implementation of daemonErrorLogFilter() for details:
e2f82a3704/src/remote/remote_daemon.c (L89)

Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Laine Stump <laine@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>

src/node_device/node_device_driver.c

@@ -724,7 +724,7 @@ nodeDeviceGetMdevctlDefineStartCommand(virNodeDeviceDef *def,
     g_autofree char *parent_addr = nodeDeviceFindAddressByName(def->parent);
 
     if (!parent_addr) {
-        virReportError(VIR_ERR_NO_NODE_DEVICE,
+        virReportError(VIR_ERR_INTERNAL_ERROR,
                        _("unable to find parent device '%s'"), def->parent);
         return NULL;
     }