libxsettings-client: fix metadata and add MIT-style-license
One tricky issue for license part. This package doesn't ship with its own COPYING file and autotools will install a GPLv2 one instead of the actual MIT-style license here. So create a MIT-style license on the fly to reflect the fact.
Use new patch parameters.
Signed-off-by: Dexuan Cui <dexuan.cui@intel.com> Signed-off-by: Kevin Tian <kevin.tian@intel.com> Signed-off-by: Saul Wold <Saul.Wold@intel.com>