HPCC-10791 The default system will not start on a ChromeBook

This change prevent to crash Thor component on a 32 bit ARM
environment where 2 GB physical RAM exits.

Signed-off-by: Attila.Vamos <attila.vamos@gmail.com>
Merge pull request #5356 from AttilaVamos/HPCC-10791-fix

HPCC-10791 The default system will not start on a ChromeBook

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>