HPCC-8973 Fix build break with huge page support

Signed-off-by: Gavin Halliday <gavin.halliday@lexisnexis.com>
Merge pull request #4109 from ghalliday/issue8973

HPCC-8973 Fix build break with huge page support

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>