refpolicy: Add generic refpolicy recipe and make policy type configurable.
glib-2.0: rename bbappend from 2.38.0 to 2.38.1
mesa: rename bbappend from 9.1.6 to 9.2.2
gnupg: rename bbappend from 2.0.21 to 2.0.22
openssh: rename bbappend from 6.2p2 to 6.4p1
sudo: rename bbappend from 1.8.7 to 1.8.8
at: bump from 3.1.13 to 3.1.14

This renames the bbappend as well as a minor tweak to the selinux patch.
tar: bump from version 1.26 to 1.27

There were significant changes in 1.27 most notably support for attrs,
xattrs, selinux and acls. This required removing the old attrs, selinux
 and acl patch. Further the recipe has been extended to include
PACKAGECONFIG support for acls and xattrs.