[syzbot] riscv/for-next build error (2)

[syzbot <syzbot+bb34359d01d7e695c1b7@syzkaller.appspotmail.com>]

Hello,

syzbot found the following issue on:

HEAD commit:    a06776565b9e riscv: process: Use str_supported_unsupported..
git tree:       git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git for-next
console output: https://syzkaller.appspot.com/x/log.txt?x=177d9325580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=1c1b9a4a89432905
dashboard link: https://syzkaller.appspot.com/bug?extid=bb34359d01d7e695c1b7
compiler:       riscv64-linux-gnu-gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
userspace arch: riscv64

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+bb34359d01d7e695c1b7@syzkaller.appspotmail.com

arch/riscv/kernel/process.c:138:17: error: implicit declaration of function 'str_supported_unsupported' [-Wimplicit-function-declaration]

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