doc: update release notes for AESNI PMDs
doc: update release notes for AESNI PMDs

AESNI MB and AESNI GCM PMDs were updated to support
latest IPSec Multi buffer library (v0.53), and the user guide
of hose drivers were updated but not release notes.

Fixes: 4b701523742e ("crypto/aesni_gcm: support in-place chained mbufs")
Fixes: d91dc5835656 ("doc: support IPsec Multi-buffer lib v0.53")

Signed-off-by: Pablo de Lara <28355d9cfe41bb8148aea0fb24f47aae8f4217a1@intel.com>

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