doc: Update DPDK version for 2.7 release.
Add DPDK version required for the OVS 2.7 release in documentation.
Acked-by: Kevin Traynor
@@ -159,6 +159,7 @@ Q: What DPDK version does each Open vSwitch release work with?
2.4.x 2.0
2.5.x 2.2
2.6.x 16.07
+ 2.7.x 16.11
============ =====
Q: I get an error like this when I configure Open vSwitch::
