Modifies number of hugepages for compute nodes

2048 is the acceptable value where default Virtual deployments will
still work.  A user can then modify deploy_settings in order to increase
number of huge pages to something other than the default.

JIRA: APEX-184

Change-Id: I7962c8e1ae09df60c51375b4ed343b44bce52b59
Signed-off-by: Tim Rozet <trozet@redhat.com>