drm/meson: fix shutdown crash when component not probed
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.12.9 by commit b4b91033a0b11fe9ade58156cd9168f89f4a8c1a, it was introduced in version v5.12 by commit fa0c16caf3d73ab4d2e5d6fa2ef2394dbec91791. For more details please see the references link.