adtrust install: define constants for rid bases
    
    Define constants for DEFAULT_PRIMARY_RID_BASE = 1000 and
    DEFAULT_SECONDARY_RID_BASE = 100000000
    
    Related: https://pagure.io/freeipa/issue/8995
    Signed-off-by: Florence Blanc-Renaud <flo@redhat.com>
    Reviewed-By: Christian Heimes <cheimes@redhat.com>
    Reviewed-By: Rob Crittenden <rcritten@redhat.com>
    Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>