squashfs: add license hash

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/squashfs/squashfs.hash

@@ -1,2 +1,5 @@
 # Locally computed
 sha256 bd0aa3011320b8ebee68aa406060de277bef16daf81bad5b9f70cbea6db1a779 squashfs-e38956b92f738518c29734399629e7cdb33072d3.tar.gz
+
+# License files
+sha256 8177f97513213526df2cf6184d8ff986c675afb514d4e68a404010521b880643 COPYING