lint: fix wrong-import-order warnings

Newer pylint is able to enforce PEP8 module ordering.  Respect it.

BUG=chromium:863669
TEST=`cros lint` no longer reports this

Change-Id: I4d4f7669d6dcced7e0d1ceeffd949a818b867055
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/1768870
Reviewed-by: Chris McDonald <cjmcdonald@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
diff --git a/scripts/upload_symbols.py b/scripts/upload_symbols.py
index 48a0507..d830bac 100644
--- a/scripts/upload_symbols.py
+++ b/scripts/upload_symbols.py
@@ -16,7 +16,6 @@
 import itertools
 import json
 import os
-import requests
 import socket
 import sys
 import textwrap
@@ -25,6 +24,8 @@
 import urllib2
 import urlparse
 
+import requests
+
 from chromite.lib import constants
 
 # pylint: disable=ungrouped-imports