firmware: sysfb: fix platform-device leak in error path
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 v5.17.2 by commit fed4df558b8cdb6f3beea38a7c977f118f082b0d, it was introduced in version v5.17 by commit 0589e8889dce8e0f0ea5bbf757f38865e2a469c1. For more details please see the references link.