util: Add netdev helper functions to private symbols

Signed-off-by: NEli Qiao <taget@linux.vnet.ibm.com>

src/libvirt_private.syms

@@ -1201,9 +1201,19 @@ virNetDevSetIPv4Address;
 virNetDevSetMAC;
 virNetDevSetMTU;
 virNetDevSetMTUFromDevice;
+virNetDevSetName;
+virNetDevSetNamespace;
 virNetDevSetOnline;
 
 
+# virnetdevbandwidth.h
+virNetDevBandwidthClear;
+virNetDevBandwidthCopy;
+virNetDevBandwidthEqual;
+virNetDevBandwidthFree;
+virNetDevBandwidthSet;
+
+
 # virnetdevbridge.h
 virNetDevBridgeAddPort;
 virNetDevBridgeCreate;
@@ -1221,6 +1231,15 @@ virNetDevTapCreateInBridgePort;
 virNetDevTapDelete;
 
 
+# virnetdevveth.h
+virNetDevVethCreate;
+virNetDevVethDelete;
+
+
+# virnetdevvportprofile.h
+virNetDevVPortProfileEqual;
+
+
 # virnetmessage.h
 virNetMessageClear;
 virNetMessageDecodeNumFDs;