BitBake currently allows using the same quotes outside and inside the
value, but it isn't really right, looks odd and might stop working in
future.
(From OE-Core rev: 0af9cf31851896276a219170001047406f45de50)
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>