8287927: ProblemList java/awt/GraphicsDevice/DisplayModes/UnknownRefrshRateTest.java on macosx-aarch64

Reviewed-by: aivanov

Author: Daniel D. Daugherty

test/jdk/ProblemList.txt

@@ -468,6 +468,7 @@ java/awt/Window/GetScreenLocation/GetScreenLocationTest.java 8225787 linux-x64
 java/awt/Dialog/MakeWindowAlwaysOnTop/MakeWindowAlwaysOnTop.java 8266243 macosx-aarch64
 java/awt/dnd/BadSerializationTest/BadSerializationTest.java 8277817 linux-x64,windows-x64
 java/awt/GraphicsDevice/CheckDisplayModes.java 8266242 macosx-aarch64
+java/awt/GraphicsDevice/DisplayModes/UnknownRefrshRateTest.java 8286436 macosx-aarch64
 
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