Change string notification for link state change.

Changed from linkstatus to linkstate to be more like the
notification function name.

Change-Id: Ie9674ca04bf9a9bdff2583786c301452d02b19fc
Signed-off-by: Mike J. Chen <mjchen@google.com>
diff --git a/NetlinkHandler.cpp b/NetlinkHandler.cpp
index 0632293..874e03f 100644
--- a/NetlinkHandler.cpp
+++ b/NetlinkHandler.cpp
@@ -98,7 +98,7 @@
 
 void NetlinkHandler::notifyInterfaceLinkChanged(const char *name, bool isUp) {
     char msg[255];
-    snprintf(msg, sizeof(msg), "Iface linkstatus %s %s", name,
+    snprintf(msg, sizeof(msg), "Iface linkstate %s %s", name,
              (isUp ? "up" : "down"));
 
     mNm->getBroadcaster()->sendBroadcast(ResponseCode::InterfaceChange,