Cherry pick upstream commit to fix -Werror=logical-not-parentheses error
when building with native gcc5.
(From OE-Core rev: b3bd0dba3139a3e79bfcebe137248c7bdcadf04d)
Signed-off-by: George McCollister <george.mccollister@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>