Skip DebugPolicyHostTests if adb root fails

Bug: 290284438
Change-Id: Ie93a5702a4725851595b7c86669a89e4bfeae3d2
Test: T/H
diff --git a/tests/hostside/java/com/android/microdroid/test/DebugPolicyHostTests.java b/tests/hostside/java/com/android/microdroid/test/DebugPolicyHostTests.java
index 014f9f0..9cf28c7 100644
--- a/tests/hostside/java/com/android/microdroid/test/DebugPolicyHostTests.java
+++ b/tests/hostside/java/com/android/microdroid/test/DebugPolicyHostTests.java
@@ -115,7 +115,7 @@
                 mAndroidDevice.supportsMicrodroid(/* protectedVm= */ true));
         assumeFalse("Test requires setprop for using custom pvmfw and adb root", isUserBuild());
 
-        mAndroidDevice.enableAdbRoot();
+        assumeTrue("Skip if adb root fails", mAndroidDevice.enableAdbRoot());
 
         // tradefed copies the test artfacts under /tmp when running tests,
         // so we should *find* the artifacts with the file name.