Disabled gNMI support in p4vm until it becomes more stable

Change-Id: If2085d5824a2b9d06b249bf8d82d92fd384de5af
diff --git a/tools/dev/mininet/bmv2.py b/tools/dev/mininet/bmv2.py
index 87ed1ba..ad3d248 100644
--- a/tools/dev/mininet/bmv2.py
+++ b/tools/dev/mininet/bmv2.py
@@ -83,7 +83,8 @@
     def __init__(self, name, json=None, debugger=False, loglevel="warn",
                  elogger=False, grpcPort=None, cpuPort=255,
                  thriftPort=None, netcfg=True, dryrun=False, pipeconfId="",
-                 pktdump=False, valgrind=False, injectPorts=False, **kwargs):
+                 pktdump=False, valgrind=False, withGnmi=False,
+                 injectPorts=True, **kwargs):
         Switch.__init__(self, name, **kwargs)
         self.grpcPort = pickUnusedPort() if not grpcPort else grpcPort
         self.thriftPort = pickUnusedPort() if not thriftPort else thriftPort
@@ -108,6 +109,7 @@
         self.netcfgfile = '/tmp/bmv2-%d-netcfg.json' % self.deviceId
         self.pipeconfId = pipeconfId
         self.injectPorts = parseBoolean(injectPorts)
+        self.withGnmi = parseBoolean(withGnmi)
         self.longitude = kwargs['longitude'] if 'longitude' in kwargs else None
         self.latitude = kwargs['latitude'] if 'latitude' in kwargs else None
         self.onosDeviceId = "device:bmv2:%d" % self.deviceId
@@ -147,10 +149,6 @@
                     "port": self.grpcPort,
                     "deviceId": self.deviceId,
                     "deviceKeyId": "p4runtime:%s" % self.onosDeviceId
-                },
-                "gnmi": {
-                    "ip": srcIP,
-                    "port": self.grpcPort
                 }
             },
             "piPipeconf": {
@@ -159,7 +157,13 @@
             "basic": basicCfg
         }
 
-        if(self.injectPorts):
+        if self.withGnmi:
+            cfgData["generalprovider"]["gnmi"] = {
+                "ip": srcIP,
+                "port": self.grpcPort
+            }
+
+        if self.injectPorts:
             portData = {}
             portId = 1
             for intfName in self.intfNames():