wrong ntl preload

[jnk0le]

riscv-c-api-doc/riscv-c-api.md

Line 406 in a8913c1

| `__builtin_prefetch(ptr, 0, 0 /* locality */);` | `ntl.all + prefetch.r (ptr)` |

Preload with ntl.all doesn't make sense. Should be probably ntl.s1 which is missing from the table.