xserver-xorg: Fix for CVE-2023-5367 and CVE-2023-5380

Upstream-Status: Backport
[https://gitlab.freedesktop.org/xorg/xserver/-/commit/541ab2ecd41d4d8689e71855d93e492bc554719a
&
https://gitlab.freedesktop.org/xorg/xserver/-/commit/564ccf2ce9616620456102727acb8b0256b7bbd7

]

Signed-off-by: Vijay Anusuri <vanusuri@mvista.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>