qemu: fix CVE-2021-3608

Source: http://git.yoctoproject.org/cgit/poky.git
MR: 112749
Type: Security Fix
Disposition: Backport from http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/meta/recipes-devtools/qemu?h=hardknott&id=f5e77d70e2eb35751f5bad5572b6eb8a3ab14422


ChangeID: 4496341da3af9126c9c67170e1a2cce929c29828
Description:

(From OE-Core rev: 5e05ee8f)

Signed-off-by: Sakib Sajal <sakib.sajal@windriver.com>
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit f5e77d70e2eb35751f5bad5572b6eb8a3ab14422)
[Refreshed patch]
Signed-off-by: Armin Kuster <akuster@mvista.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>