linux-user: fix 'finshed' typo in comment

Signed-off-by: NEmilio G. Cota <cota@braap.org>
Signed-off-by: NRiku Voipio <riku.voipio@linaro.org>

linux-user/syscall.c

@@ -6258,7 +6258,7 @@ static void *clone_func(void *arg)
     pthread_mutex_lock(&info->mutex);
     pthread_cond_broadcast(&info->cond);
     pthread_mutex_unlock(&info->mutex);
-    /* Wait until the parent has finshed initializing the tls state.  */
+    /* Wait until the parent has finished initializing the tls state.  */
     pthread_mutex_lock(&clone_lock);
     pthread_mutex_unlock(&clone_lock);
     cpu_loop(env);