lxc: add hash for license file

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/lxc/lxc.hash

@@ -1,2 +1,3 @@
 # Locally calculated
 sha256	68663a67450a8d6734e137eac54cc7077209fb15c456eec401a2c26e6386eff6	lxc-2.1.1.tar.gz
+sha256	dc626520dcd53a22f727af3ee42c770e56c97a64fe3adb063799d8ab032fe551	COPYING