jansson: add hash file

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/jansson/jansson.hash

@@ -0,0 +1,2 @@
+# Locally calculated after checking pgp signature
+sha256	7905e6590fb316c0ff943df3dc6a21cd81a59cff7a6d12514054c359d04d78d7	jansson-2.7.tar.gz