[TESTBUG] remove nsk/coverage/jni/jni008 from exclusion list

FATAL ERROR in native method: TEST FAILED: waitingThread: the threads are still alive
 JavaVMInitArgs:
  version = 65538
  ignoreUnrecognized = 1
  vmargs.nOptions = 7
    options[0].optionString = -server
    options[0].extraInfo = 0000000000000000
    options[1].optionString = -Xcomp
    options[1].extraInfo = 0000000000000000
    options[2].optionString = -XX:+StartAttachListener
    options[2].extraInfo = 0000000000000000
    options[3].optionString = -XX:+UseSerialGC
    options[3].extraInfo = 0000000000000000
    options[4].optionString = -XX:-UseGCOverheadLimit
    options[4].extraInfo = 0000000000000000
    options[5].optionString = -waittime
    options[5].extraInfo = 0000000000000000
    options[6].optionString = -Djava.class.path=c:/local/74539.JDK7.PROMOTION.VM+windows-amd64_vm__server_comp_nsk.coverage.testlist/results/ResultDir/jni008;C:/local/common/testbase/7/vm/vm/bin/classes;C:/local/common/jdk/baseline/windows-amd64/lib/tools.jar
    options[6].extraInfo = 0000000000000000
 # Test level exit status: 1

http://vmsqe.russia.sun.com/execution/results/JDK7/PROMOTION/VM/7/b127/SerialGC/vm/windows-amd64/server/comp/windows-amd64_vm__server_comp_nsk.coverage.testlist/ResultDir/jni008/jni008.log

The test simply seems to hang. Reproducable on windows-amd64 with server VM.