CVE-2025-37966 riscv: Fix kernel crash due to PR_SET_TAGGED_ADDR_CTRL

In the Linux kernel, the following vulnerability has been resolved: riscv: Fix kernel crash due to PRSETTAGGEDADDRCTRL When userspace does PRSETTAGGEDADDRCTRL, but Supm extension is not available, the kernel crashes: Oops - illegal instruction 1 snip epc : settaggedaddrctrl+0x112/0x15a ra :...