app/pipeline: fix dependency for FreeBSD
app/pipeline: fix dependency for FreeBSD

When building on FreeBSD, the compiler emitted an error due to being
unable to find rte_pci.h. This was due to missing dependencies for the
application.

Fixes: 474572d2ae5a ("app/pipeline: move from test directory")

Signed-off-by: Bruce Richardson <66b9e8e8fbd5e9f41f91b0af050876182ce9d0e4@intel.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk