Alias to quickly start Mininet with BMv2 in cell network machines

Also do not generate bmv-thrift netcfg in bmv2.py

Change-Id: Iebb84ab1b6f007ad42366ec676cce6b08e5fc27c
diff --git a/tools/dev/bash_profile b/tools/dev/bash_profile
index 9f363a9..885717c 100644
--- a/tools/dev/bash_profile
+++ b/tools/dev/bash_profile
@@ -342,3 +342,6 @@
 
 # Load UK topo GEO data
 alias uktopo='onos-netcfg $OCI $ONOS_ROOT/tools/test/topos/uk-cfg.json'
+
+# Mininet command that uses BMv2 instead of OVS
+alias mn-p4='sudo -E mn --custom $BMV2_MN_PY --switch onosbmv2 --controller remote,ip=$OC1'