googlefontdirectory: add hash file

Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/googlefontdirectory/googlefontdirectory.hash

@@ -0,0 +1,2 @@
+# Locally calculated
+sha256 8a7d04feef21fdfc09d90cd3e2c0c05dcb2fdd4e15f971e8ceaf4d90c1c123cd googlewebfonts.tgz