s4-privs Remove link between enum sec_privilege and the privilege bitmap

s4-privs Remove link between enum sec_privilege and the privilege bitmap

This allows us to set the enum sec_privilege constants to the LUID
values that are seen from windows, which we need to match, in order
to preserve the support for the NT Print Migrator tool after a merge
with the source3/ privileges code.

Andrew Bartlett

Signed-off-by: Andrew Tridgell <tridge@samba.org>