serial: liteuart: fix minor-number leak on probe errors
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 v5.15.7 by commit 888fc81107cacd2a4f681bac7bb785cef868214f, it was introduced in version v5.11 by commit 1da81e5562fac8286567422cc56a7fbd0dc646d4. For more details please see the references link.