mempool: fix creation with Xen dom0
mempool: fix creation with Xen dom0

Restore the use of 2M hugepages when using Xen Dom0 that was
dropped during mempool rework.

Fixes: c042ba20674a ("mempool: rework support of Xen dom0")

Reported-by: Huilong Xu <66b391ba07b4e1e575c4888dad46879fa332fb22@intel.com>
Signed-off-by: Olivier Matz <dfcc1510895413197abb4336e39bb0a3906cba71@6wind.com>

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