8297147: UnexpectedSourceImageSize test times out on slow machines when fastdebug is used

Backport-of: 88957a7ce8932b95e3a18e6a7d1ceb3b7f60c781

Author: MBaesken

test/jdk/sun/java2d/cmm/ColorConvertOp/UnexpectedSourceImageSize.java

@@ -44,6 +44,7 @@
  * @test
  * @bug 8264666
  * @summary No exception or errors should occur in ColorConvertOp.filter().
+ * @run main/othervm/timeout=600 UnexpectedSourceImageSize
  */
 public final class UnexpectedSourceImageSize {