cros_sdk: add logging import used by curl fixup

BUG=None
TEST=None

Change-Id: I3c4a99d25c8721047fd557d293b8b6be52d08827
(cherry picked from commit 8cdf376232895749842953cea3281352b18792ce)
Reviewed-on: https://chromium-review.googlesource.com/1146053
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
diff --git a/scripts/cros_sdk.py b/scripts/cros_sdk.py
index e1f263a..ab3dd39 100644
--- a/scripts/cros_sdk.py
+++ b/scripts/cros_sdk.py
@@ -7,6 +7,7 @@
 from __future__ import print_function
 
 import glob
+import logging
 import os
 import pwd
 import re