VOL-1883 - "proxy_address: None" during mib_reset.

-passed Device to _onu_omci_device.start from  brcm_openomci_onu_handler.
 So no need to call getDevice again.

Change-Id: I05e00e9f71a1f18d2dc4fd934dc2b3fc86903d32
diff --git a/python/requirements.txt b/python/requirements.txt
index fcb240b..ddddf47 100644
--- a/python/requirements.txt
+++ b/python/requirements.txt
@@ -60,4 +60,4 @@
 python-consul==0.6.2
 afkak==3.0.0.dev20181106
 voltha-protos==1.0.0
-pyvoltha==2.2.0
+pyvoltha==2.2.1