test/crypto: rework PDCP function
test/crypto: rework PDCP function

The function test_pdcp_proto was relying to heavily on the structure
of test vectors for PDCP making it difficult to be reusable.

The function is changed to take all the test parameters as input and
does not need access to the tests vectors anymore.

Signed-off-by: Franck Lenormand <a1f87c74375f8fe45b8adf8cbbd750bc53e76513@nxp.com>

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