Update dpdk submodule
Update dpdk submodule

* dpdk 71db32d74c...0f48699411 (1):
  > pmdinfogen: fix build with gcc 11

Backported upstream build fix.

syuu1228/seastar,cloudius-systems/seastar,scylladb/seastar,syuu1228/seastar,avikivity/seastar,syuu1228/seastar,cloudius-systems/seastar,scylladb/seastar,avikivity/seastar,avikivity/seastar,cloudius-systems/seastar,scylladb/seastar