meta-tizen: manifests: default Tizen manifest

meta-tizen: manifests: default Tizen manifest

All binary .rpms should be built with at least a stub .manifest file
assiging the "_" label to all packaged files. Explicitly adding that
to all Yocto recipes via .bbappend is cumbersome, so do it globally in
tizen.conf. It's still possible to override that default by prepending
a different .manifest[.in] file.

Change-Id: Ife3aa29c42c0e095f913c9b6effae78e5caa7e10
(From meta-tizen rev: d47ae747b6da3ad306fc8717b33ae68012bf49e7)

Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>