package/at91dataflashboot: add hash file

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

boot/at91dataflashboot/at91dataflashboot.hash

@@ -0,0 +1,2 @@
+# locally computed
+sha256  2cfeb6a9236e1a743c8010f05e504dbc92169ef42d9a6cf7948954a577bfc386  DataflashBoot-1.05.tar.bz2