Disable flaky MultiDisplayImeTests test

They are flaky above trunk stable SLO and preventing large screen in presubmit

Bug: 297051530
Test: atest MultiDisplayImeTests
Change-Id: I8c4df0189754a1cd8fabf7609aa6d54dd473d2b3
diff --git a/tests/framework/base/windowmanager/src/android/server/wm/display/MultiDisplayImeTests.java b/tests/framework/base/windowmanager/src/android/server/wm/display/MultiDisplayImeTests.java
index 6111f7e..678d631c 100644
--- a/tests/framework/base/windowmanager/src/android/server/wm/display/MultiDisplayImeTests.java
+++ b/tests/framework/base/windowmanager/src/android/server/wm/display/MultiDisplayImeTests.java
@@ -68,6 +68,8 @@
 import android.widget.EditText;
 import android.widget.LinearLayout;
 
+import androidx.test.filters.FlakyTest;
+
 import com.android.compatibility.common.util.SystemUtil;
 import com.android.cts.mockime.ImeCommand;
 import com.android.cts.mockime.ImeEventStream;
@@ -427,6 +429,7 @@
     }
 
     @Test
+    @FlakyTest(bugId = 297051530)
     public void testNoConfigurationChangedWhenSwitchBetweenTwoIdenticalDisplays() throws Exception {
         // If config_perDisplayFocusEnabled, the focus will not move even if touching on
         // the Activity in the different display.