doc: add port representor in release notes
doc: add port representor in release notes

Signed-off-by: Mohammad Abdul Awal <38374f06acadb758f6fbf72e9fd35fff1cac6ad2@intel.com>
Acked-by: John McNamara <af31595c36a4239b9676e9b3a777d3e2f15a6c4d@intel.com>

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