Changelog:
- Fix undefined variable errors when strict_undefined=True when using a
nested list comprehension.
(From OE-Core rev: 40a60f0ca45116604430f8b0d1ee4f70e1f9843e)
Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
