Added JIRA: GENESIS-46 for voting

Added JIRA: GENESIS-46 for voting
Description: The SFC project needs a version of OVS that supports Network
Service Headers (NSH). The required end-system state for the B-release
will be an official OVS patch that Intel is preparing that will provide
full OVS 2.4 support.
This official OVS patch is not available yet. Until this official patch is
available, there is a patch available in a private branch that we will have
to use during the life cycle of the B release. This private OVS branch does
not support all of the OVS 2.4 features. The private OVS branch can be
obtained as follows:

git clone -b nsh-v8 https://github.com/priteshk/ovs.git

JIRA:GENESIS-46

Change-Id: Iae5a102340ba5b7a75651c7efb9256566177ed8d
Signed-off-by: Jonas Bjurel <jonas.bjurel@ericsson.com>