Use the new MX_OK spelling of NO_ERROR

Change-Id: I3018195fa58cef93b3ab20a4c6acab66e56e0a7f
diff --git a/crypto/rand/fuchsia.c b/crypto/rand/fuchsia.c
index 2e138d0..41e8521 100644
--- a/crypto/rand/fuchsia.c
+++ b/crypto/rand/fuchsia.c
@@ -32,7 +32,7 @@
     size_t bytes_drawn;
     mx_status_t status =
         mx_cprng_draw(out, output_bytes_this_pass, &bytes_drawn);
-    if (status != NO_ERROR) {
+    if (status != MX_OK) {
       abort();
     }
     requested -= bytes_drawn;