Update docs/draft/crypto_affinity.md

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: AlexLanzano

docs/draft/crypto_affinity.md

@@ -78,6 +78,7 @@ if (rc == WH_ERROR_OK) {
 | `WH_ERROR_BADCONFIG` | HW requested but no HW crypto configured |
 | `WH_ERROR_BADARGS` | Invalid affinity value |
 | `WH_ERROR_ABORTED` | Server crypto context is NULL |
+| `WH_ERROR_NOTIMPL` | Affinity change not implemented (returned when `WOLF_CRYPTO_CB` is not defined and HW affinity is requested, or when `WOLFHSM_CFG_NO_CRYPTO` is defined) |
 
 ## Server Behavior