Update pmd/lcore mask for OVS-DPDK context
Added default values for pmd/lcore mask to the SampleVNF test case for
Trex TG.
lcore mask - specifies the CPU cores used for non-datapath OVS-DPDK
threads.
pmd mask - specifies the CPU cores used for data path packet processing.
Updated documentation for Standalone OVS-DPDK context.
JIRA: YARDSTICK-1246
Change-Id: I8d008a185c94d2047ffa4769d7974bc4d283fd7f
Signed-off-by: Stepan Andrushko <stepanx.andrushko@intel.com>
(cherry picked from commit
779a868348c3361f2a3054f06002807fd69a6549)