dpdk: update submodule to current spdk-21.11 branch

Update submodule so that it includes recent patch
for meson.build.

Signed-off-by: Karol Latecki <karol.latecki@intel.com>
Change-Id: If4900ee2876110e3a980c4021c7998fd9a2979f3
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/12371


Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Pawel Piatek <pawelx.piatek@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Community-CI: Mellanox Build Bot
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>