libunwind: ignore various issues now fatal with gcc-14

http://gecko.lge.com:8000/Errors/Details/821679


Signed-off-by: Martin Jansa <martin.jansa@gmail.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 20b9e998)
Signed-off-by: Steve Sakoman <steve@sakoman.com>