If the path contains 'scripts' more than once the first occurrence will be
incorrectly used. Use rfind instead of find to find the last occurrence.
(From OE-Core rev: f30c486c17060d2f21618612804a692512ad6a57)
Signed-off-by: George McCollister <george.mccollister@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>