cheets_GTS: uprev to gts-5.1_r4.

Downloaded from
https://support.google.com/androidpartners_gms/answer/6173316

TEST=CQ will test
BUG=b:68021674

Change-Id: Iac2b63de2176da3235c5d4578944168f6afb800f
Reviewed-on: https://chromium-review.googlesource.com/1029031
Commit-Queue: Keith Haddow <haddowk@chromium.org>
Tested-by: Keith Haddow <haddowk@chromium.org>
Trybot-Ready: Keith Haddow <haddowk@chromium.org>
Reviewed-by: Ilja H. Friedel <ihf@chromium.org>
diff --git a/server/site_tests/cheets_GTS/cheets_GTS.py b/server/site_tests/cheets_GTS/cheets_GTS.py
index 4e86180..9fdf0b8 100644
--- a/server/site_tests/cheets_GTS/cheets_GTS.py
+++ b/server/site_tests/cheets_GTS/cheets_GTS.py
@@ -18,7 +18,7 @@
 from autotest_lib.server import utils
 from autotest_lib.server.cros import tradefed_test
 
-_PARTNER_GTS_LOCATION = 'gs://chromeos-partner-gts/gts-5.1_r3-4604229.zip'
+_PARTNER_GTS_LOCATION = 'gs://chromeos-partner-gts/gts-5.1_r4-4697968.zip'
 
 
 class cheets_GTS(tradefed_test.TradefedTest):