package/lxc: bump to version 5.0.1

LXC 5.0 will be supported until June 2027 and our current LTS release,
LXC 4.0 will now switch to a slower maintenance pace, only getting
critical bugfixes and security updates.

We strongly recommend all LXC users to plan an upgrade to the 5.0
branch.

- Switch to meson-package
- Add an upstream patch to fix the following build failure with glibc
  2.36 (unfortunately upstream doesn't plan to fix this for 4.x:
  https://github.com/lxc/lxc/issues/4183 and patch is only working with
  meson, not autotools)

https://discuss.linuxcontainers.org/t/lxc-5-0-lts-has-been-released
https://discuss.linuxcontainers.org/t/lxc-5-0-1-has-been-released

Fixes:
 - http://autobuild.buildroot.org/results/f77e2dc44c9a224f280e08089a890e85c302274f



Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>