xz: add hash file

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/xz/xz.hash

@@ -0,0 +1,2 @@
+# Locally calculated after checking pgp signature
+sha256	166c48d2842519bc4f96333bff9e265f8cdda44d38e40594ef3f9bbb52890490	xz-5.0.5.tar.bz2