dpdk: Support of DPDK v16.04

Configuration options modified by VSPERF were split
between config_base and config_linuxapp files. Makefile
was modified to reflect this change.
Additional changes:
* content of qemu shared dir is copied without preservation
of attributes to avoid compilation issues due misaligned
clocks => could produce broken igb_uio module
* added support of new testpmd "Bye.." message
* DPDK sources are copied from RTE_SDK_USER directory for all
VNF variants - this has been wrongly reverted by inttest patch

Change-Id: Id502a072c1f843258496decbf031e7ba7264d459
JIRA: VSPERF-297
Signed-off-by: Martin Klozik <martinx.klozik@intel.com>
Reviewed-by: Maryam Tahhan <maryam.tahhan@intel.com>
Reviewed-by: Al Morton <acmorton@att.com>
Reviewed-by: Christian Trautman <ctrautma@redhat.com>
Reviewed-by: Brian Castelli <brian.castelli@spirent.com>
Reviewed-by: Michal Weglicki <michalx.weglicki@intel.com>