package/gstreamer: add hash file

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/gstreamer/gstreamer/gstreamer.hash

@@ -1,2 +1,4 @@
 # From http://gstreamer.freedesktop.org/src/gstreamer/gstreamer-0.10.36.tar.xz.md5
 md5	15389c73e091b1dda915279c388b9cb2	gstreamer-0.10.36.tar.xz
+# locally computed
+sha256  9151aa108c177054387885763fa0e433e76780f7c5655c70a5390f2a6c6871da  gstreamer-0.10.36.tar.xz