package/libjpeg: add hash file

Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/libjpeg/libjpeg.hash

@@ -0,0 +1,2 @@
+# locally computed hash
+sha256 3a753ea48d917945dd54a2d97de388aa06ca2eb1066cbfdc6652036349fe05a7 jpegsrc.v9a.tar.gz