test/eventdev: fix ethdev port id to 16-bit
test/eventdev: fix ethdev port id to 16-bit

port id in test case is update to unsigned int 16 bit, to
prevent compilation failure when RTE_MAX_ETHPORTS port is
set more than 255.

Fixes: fc8030eb8fe9 ("test/eventdev: add tests for eth Rx adapter APIs")
Cc: stable@dpdk.org

Signed-off-by: Vipin Varghese <b0b9508e3fd3e721e16f75bda9fcfd493661c711@intel.com>
Acked-by: Nikhil Rao <d1996eefd6f63075256880b1bd8999364b16b5fc@intel.com>

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