Unless cachedpath is used correctly then it's just a glorified clone of
os.walk, but without any of the recent optimisations in os.walk. In
this codepath there is no point to using cachedpath.
(From OE-Core rev: 765e0c3410d6bf3b4a50c4a036f555eae760acd2)
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>