package/mxs-bootlets: add hash file

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

boot/mxs-bootlets/mxs-bootlets.hash

@@ -0,0 +1,2 @@
+# locally computed
+sha256  63f6068ae36884adef4259bbb1fe2591755718f22c46d0a59d854883dfab1ffc  imx-bootlets-src-10.12.01.tar.gz