package/gstreamer1: add hash file

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

package/gstreamer1/gstreamer1/gstreamer1.hash

@@ -1,2 +1,4 @@
 # From http://gstreamer.freedesktop.org/src/gstreamer/gstreamer-1.8.2.tar.xz.sha256sum
 sha256	9dbebe079c2ab2004ef7f2649fa317cabea1feb4fb5605c24d40744b90918341  gstreamer-1.8.2.tar.xz
+# locally computed
+sha256  9dbebe079c2ab2004ef7f2649fa317cabea1feb4fb5605c24d40744b90918341  gstreamer-1.8.2.tar.xz