devtool: reset: fix preserving patches/other files next to recipes
If files had been created next to the recipe (for example devtool add,
edit the source and commit and then devtool update-recipe), running
devtool reset failed to preserve those files and gave an error due
to trying to rmdir the directory containing them which wasn't empty.
Fix the preservation of files in the "attic" directory properly so
we catch anything under the directory for the recipe, and replicate
the same structure in the attic directory rather than slightly
flattening it as we were before.
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
