RISC-V: Add fast call path of crash_kexec()
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 v5.4.211 by commit 814d83c5e1272ad86d364bad71d0f4236a4a555e. For more details please see the references link.