mod_recovery_for_decryption.sh: move to contrib

This is only used indirectly via documentation, so relocate it
to the contrib directory to indicate its overall support status.

BUG=None
TEST=precq passes

Change-Id: If83545e4384f3473cd9692e619a69f1370844914
Reviewed-on: https://chromium-review.googlesource.com/1114479
Commit-Ready: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
1 file changed