test: allow running shared build without installing

test: allow running shared build without installing

Currently many unit tests fail when running tests under shared builds.
This happens because of missing driver dependencies. This is fixed by
explicitly linking in missing drivers for the test application.

before and after (clang):
https://travis-ci.com/Maickii/dpdk-2/jobs/212329160#L623
https://travis-ci.com/Maickii/dpdk-2/jobs/212335912#L620

Suggested-by: Bruce Richardson <bruce.richardson@intel.com>
Suggested-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Michael Santana <msantana@redhat.com>
Signed-off-by: Aaron Conole <aconole@redhat.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>