cheets_CTS_R: Update no-test modules.

I missed this module in crrev.com/c/2969363 somehow
thinking that it wasn't empty for R, but checking the
recent results, all the cases in the module are
actually returning assumption failures. It needs to
be marked as empty.

BUG=b:68778082
TEST=cheets_CTS_R.x86.CtsSyncContentHostTestCases

Change-Id: Ic39d2804d971d579ad31a0f13f4bbebbdb0fbe99
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/autotest/+/3000131
Tested-by: Kazuhiro Inaba <kinaba@chromium.org>
Auto-Submit: Kazuhiro Inaba <kinaba@chromium.org>
Commit-Queue: Jiyoun Ha <jiyounha@chromium.org>
Reviewed-by: Jiyoun Ha <jiyounha@chromium.org>
diff --git a/server/site_tests/cheets_CTS_R/notest_modules/notest_modules.yaml b/server/site_tests/cheets_CTS_R/notest_modules/notest_modules.yaml
index 1b56a1e..8965839 100644
--- a/server/site_tests/cheets_CTS_R/notest_modules/notest_modules.yaml
+++ b/server/site_tests/cheets_CTS_R/notest_modules/notest_modules.yaml
@@ -25,6 +25,7 @@
 CtsSecureElementAccessControlTestCases1: [all]
 CtsSecureElementAccessControlTestCases2: [all]
 CtsSecureElementAccessControlTestCases3: [all]
+CtsSyncContentHostTestCases: [all]
 CtsSystemApiAnnotationTestCases: [nativebridge]
 CtsTestHarnessModeTestCases: [all]
 CtsWindowManagerJetpackTestCases: [all]