bpf: Fix wrong reg type conversion in release_reference()
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 v5.15.79 by commit 466ce46f251dfb259a8cbaa895ab9edd6fb56240, it was introduced in version v4.20 by commit fd978bf7fd312581a7ca454a991f0ffb34c4204b. For more details please see the references link.