[autotest] Uprev CTS version to 7.1_r27

TEST=None
BUG=b:68778082

Change-Id: I676f79cad0948d3685c04def46fe646590590dba
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/autotest/+/1619339
Tested-by: Keith Haddow <haddowk@chromium.org>
Tested-by: Kazuhiro Inaba <kinaba@chromium.org>
Commit-Queue: Kazuhiro Inaba <kinaba@chromium.org>
Reviewed-by: Kazuhiro Inaba <kinaba@chromium.org>
diff --git a/server/site_tests/cheets_CTS_N/cheets_CTS_N.py b/server/site_tests/cheets_CTS_N/cheets_CTS_N.py
index 6d7c65a..2b99d68 100644
--- a/server/site_tests/cheets_CTS_N/cheets_CTS_N.py
+++ b/server/site_tests/cheets_CTS_N/cheets_CTS_N.py
@@ -28,8 +28,8 @@
 # Public download locations for android cts bundles.
 _DL_CTS = 'https://dl.google.com/dl/android/cts/'
 _CTS_URI = {
-    'arm': _DL_CTS + 'android-cts-7.1_r26-linux_x86-arm.zip',
-    'x86': _DL_CTS + 'android-cts-7.1_r26-linux_x86-x86.zip',
+    'arm': _DL_CTS + 'android-cts-7.1_r27-linux_x86-arm.zip',
+    'x86': _DL_CTS + 'android-cts-7.1_r27-linux_x86-x86.zip',
     'media': _DL_CTS + 'android-cts-media-1.4.zip',
 }