[PATCH] riscv: fix minor typo in syscall.h comment

[Paul Walmsley]

On Mon, 19 Jan 2026, Austin Kim wrote:

> From: Austin Kim <austin.kim at lge.com>
> 
> Some developers may be confused because RISC-V does not have
> a register named r0. Also, orig_r0 is not available in pt_regs structure,
> which is specific to riscv. So we had better fix this minor typo.
> 
> Signed-off-by: Austin Kim <austin.kim at lge.com>

Thanks, queued for v6.20.


- Paul