libX11: CVE-2022-3554 & CVE-2022-3555 Fix memory leak

Upstream-Status: Backport from https://gitlab.freedesktop.org/xorg/lib/libx11/-/commit/1d11822601fd24a396b354fa616b04ed3df8b4ef && https://gitlab.freedesktop.org/xorg/lib/libx11/-/commit/8a368d808fec166b5fb3dfe6312aab22c7ee20af



Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>