Fix minor issues.

Change-Id: I1ce5106d99dd4d4b1c033d4873b4511e9a170afc
Signed-off-by: John DeNisco <jdenisco@cisco.com>
diff --git a/extras/vpp_config/vpp_config.py b/extras/vpp_config/vpp_config.py
index d9d6584..a5d57bf 100755
--- a/extras/vpp_config/vpp_config.py
+++ b/extras/vpp_config/vpp_config.py
@@ -660,7 +660,7 @@
         cmd = 'modprobe uio_pci_generic'
         (ret, stdout, stderr) = VPPUtil.exec_command(cmd)
         if ret != 0:
-            raise RuntimeError('{} failed on node {} {}'. format(cmd, node['host'], stderr))
+            logging.warning('{} failed on node {} {}'. format(cmd, node['host'], stderr))
 
 
 # noinspection PyUnresolvedReferences