f2fs: fix to avoid f2fs_bug_on() in dec_valid_node_count()
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 v5.17.14 by commit 89d9a48d0cd30429463ea4e37ca83be6773ed5eb. For more details please see the references link.