lib/param: Merge struct loadparm_service into common

lib/param: Merge struct loadparm_service into common

This is handled by a common header and a .c file that is included into
both loadparm.c files.

In the process, _lp functions were renamed to lp__ to allow the common
function definition declarations to be used by source3 and source4
(which have different macro definitions).

The only parameter to change type is 'strict_locking' which was a
bool, and is now an int, to accommodate the 'Auto' value from source3.

Andrew Bartlett

Autobuild-User: Andrew Bartlett <abartlet@samba.org>
Autobuild-Date: Fri Jul  8 12:35:56 CEST 2011 on sn-devel-104