dpdk: update submodule

Update dpdk to remove the workaround patch 8f76f7e2bf23 to vhost library.

Change-Id: Ie0ae3a699effb00670943c870cb49e2ce46153b7
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/15538


Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>