malva: Disable broken Thread#setUncaughtExceptionHandler test
malva: Disable broken Thread#setUncaughtExceptionHandler test

Exception in thread "main" java.lang.AssertionError: Apparently test thread never completes its work
	at malva.TestCase.fail(TestCase.java:74)
	at malva.java.lang.ThreadTest.testSetUncaughtExceptionHandler(ThreadTest.java:260)
	at malva.java.lang.ThreadTest.main(ThreadTest.java:318)

Signed-off-by: Pekka Enberg <add4fcd06328a394f0ad91feda7ee057316dc5ed@kernel.org>

jatovm/malva,jatovm/malva