When -x was specified, we were getting the normal unpack subdirectory
which we don't really want - if there's only one subdirectory unpacked
then we should effectively copy just it to the extraction path, not as a
subdirectory under it.
(From OE-Core master rev: 0eeecce96a0aa757c2c4c4ac4d82e3bcbf0f982c)
(From OE-Core rev: 3378c932570ba2301cd02103225fcf7629de656f)
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>