doc: update new features
doc: update new features

- Remove duplicate entry
- Added remaining features to list of new features

Signed-off-by: Siobhan Butler <8cf2da75f16c15b95e66f52a35c85d9ba5dc91d6@intel.com>

john-mcnamara-intel/dpdk,venkynv/dpdk-mirror,tsphillips/dpdk-fork,mixja/dpdk,msune/dpdk,tsphillips/dpdk-fork,venkynv/dpdk-mirror,mixja/dpdk,venkynv/dpdk-mirror,john-mcnamara-intel/dpdk,tsphillips/dpdk-fork,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,msune/dpdk,msune/dpdk,mixja/dpdk,tsphillips/dpdk-fork,mixja/dpdk,venkynv/dpdk-mirror,msune/dpdk