...like is done for most other ini-files too, with entries indentical to the
ones in scp2/source/ooo/ure.scp.  (And sort ini-files lexicographically again in
instsetoo_native/*.mk, broken with recent louno rename).

Leave ure/source/unorc.in and ure/Pacakge_builddir_install.mk around for the
cross-compilation case only.

Change-Id: Ic07e036ef126db1aee2c0f6b726c2b86c2536c53