fbcon: Use kzalloc() in fbconpreparelogo()
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 v6.0.13 by commit 9bbebc6aba72ece39a200c8141f44e68ba883877. For more details please see the references link.