MT#55283 fix forky script

Change-Id: I3a03e254a9c0dbfde63a1deab8e09f72959c164a
(cherry picked from commit a9bfb88d89)

pkg/deb/backports/forky

@@ -1,7 +1,7 @@
 #!/bin/bash
 #
 # Target dist: Debian Forky
-DIST=sid
+DIST=forky
 
 if [ ! -d ../../pkg/deb ] ; then
   echo "script needs to be executed at pkg/deb dir" >&2