Its better for us to disable these extra warnings, upstream should fix
them correctly in code and we can re-enable it
(From OE-Core rev: ebb315955c1ec0cb524d8678ca5af1648f700406)
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>