librsvg: add hash file

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

package/librsvg/librsvg.hash

@@ -0,0 +1,2 @@
+# From http://ftp.gnome.org/pub/gnome/sources/librsvg/2.26/librsvg-2.26.3.sha256sum
+sha256	3761e3d446a9c2f4ebe52431289e15976f1d447f64ed33bb7f35cb1c430eac49	librsvg-2.26.3.tar.gz