RISC-V: kexec: Fix memory leak of fdt buffer
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 v6.0.18 by commit c66ad198b6497dee8f45d7ed5c03629c4525c7d0, it was introduced in version v5.19 by commit 6261586e0c91db14c34f894f4bc48f2300cff1d4. For more details please see the references link.