tiff: add hash

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/tiff/tiff.hash

@@ -0,0 +1,2 @@
+# Locally computed
+sha256 ea1aebe282319537fb2d4d7805f478dd4e0e05c33d0928baba76a7c963684872	tiff-4.0.3.tar.gz