Fixes Hyper-V issue due to ML2 RPC versioning

The ML2 RPC version 1.1 breaks the hyper-v agent and
consequentially the RPC version in the Hyper-V agent needs
to be set to 1.1 to match the ML2 RPC base API version.

Change-Id: Idc4ae8d7dcff4331aca148a8f2a7a2b01679b3a8
Closes-Bug: #1353697
Merge "Fixes Hyper-V issue due to ML2 RPC versioning"