selftest-ed: add a RECIPE_NO_UPDATE_REASON

This will avoid AUH looking at it, among other things.

(From OE-Core rev: 048da771c31f4e07d2b10265cf57a6e7b9640f84)

Signed-off-by: Alexander Kanavin <alexander.kanavin@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta-selftest/recipes-test/selftest-ed/selftest-ed_1.14.1.bb

@@ -12,6 +12,7 @@ SECTION = "base"
 bindir = "${base_bindir}"
 
 SRC_URI = "${GNU_MIRROR}/ed/ed-${PV}.tar.lz"
+RECIPE_NO_UPDATE_REASON = "This recipe is used in selftest and shouldn't be updated otherwise"
 
 SRC_URI[md5sum] = "7f4a54fa7f366479f03654b8af645fd0"
 SRC_URI[sha256sum] = "ffb97eb8f2a2b5a71a9b97e3872adce953aa1b8958e04c5b7bf11d556f32552a"