xz: Restore quilt patch directory
xz: Restore quilt patch directory

This change is required for the latest version provided by
3e2c8096abb2087f0fa992a608cd9658a6f38250

Signed-off-by: Kazuhiro Hayashi <5579fccaa800baf92910671700646e6b27853b34@gmail.com>

meta-debian/meta-debian,meta-debian/meta-debian,meta-debian/meta-debian,meta-debian/meta-debian,meta-debian/meta-debian,meta-debian/meta-debian