gnome-keyring: add (from oe-core)
This was previously in oe-core but nothing there was actually using it in an
image. As it's part of GNOME, move it meta-gnome.
The custom service file is dropped, as upstream is now shipping and installing
this file (and has been for some time).
(From meta-openembedded rev:
81e1b91d81f93b39cc0731f696cee7f9031a1414)
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>