x86/mm/ident_map: Use gbpages only where full GB page should be mapped.
JIRA: https://issues.redhat.com/browse/RHEL-26268
Signed-off-by: Chris von Recklinghausen crecklin@redhat.com
JIRA: https://issues.redhat.com/browse/RHEL-26268
Signed-off-by: Chris von Recklinghausen crecklin@redhat.com