virttest: enhanced run_autotest function

changes:
   1. increased default timeout values when execute commands in guest;
   2. instread result files one by one to copy results tarball
   3. cleanup autotest subprocess after guest test done

Signed-off-by: Xu Tian <xutian@redhat.com>

rollback utils_test

Signed-off-by: Xu Tian <xutian@redhat.com>
virt.tests: update autotest.iozone cfg

update cfg to make iozone run when AIO is threads and native

Signed-off-by: Xu Tian <xutian@redhat.com>
shared.control: make xfstests run on real partation

update xfstests.control to make it run on a real partation in guest;

Signed-off-by: Xu Tian <xutian@redhat.com>
virt.tests: sync linus_stress testing to autotest_control testsuite

Signed-off-by: Xu Tian <xutian@redhat.com>
virt.tests: sync signaltest to autotest_control testsuite

Signed-off-by: Xu Tian <xutian@redhat.com>
virt.tests: sync parallel_dd to autotest_control testsuite

Signed-off-by: Xu Tian <xutian@redhat.com>
virt.tests: update autotest.cpu_hotplug cfg

add filter "only exclue RHEL.3.9 RHEL.4" to avoid run cpu_hotplug on
unsupported guest;
add parm "kill_vm = yes" to avoid impact next tests

Signed-off-by: Xu Tian <xutian@redhat.com>
virt.tests: sync compliebench to autotest_control testsuite

Signed-off-by: Xu Tian <xutian@redhat.com>
virt.tests: sync fsstress testing to autotest_control testsuite

Signed-off-by: Xu Tian <xutian@redhat.com>
virt.tests: sync aiostress testing to autotest_control testsuite

Signed-off-by: Xu Tian <xutian@redhat.com>
virt.tests: sync interbench testing to autotest_control testsuite

Signed-off-by: Xu Tian <xutian@redhat.com>
virt.tests: sync kernbench testing to autotest_control testsuite

Signed-off-by: Xu Tian <xutian@redhat.com>
virt.tests: sync posixtest to autotest_control testsuite

Signed-off-by: Xu Tian <xutian@redhat.com>
virt.tests: sync rmaptest to autotest_control testsuite

Signed-off-by: Xu Tian <xutian@redhat.com>
virt.tests: sync synctest to autotest_control testsuite

Signed-off-by: Xu Tian <xutian@redhat.com>
virt.tests: sync tbench testing to autotest_control testsuite

Signed-off-by: Xu Tian <xutian@redhat.com>
virt.tests: sync tiobench testing to autotest_control testsuite

test threads IO in guest when drive AIO is native or threads;

Signed-off-by: Xu Tian <xutian@redhat.com>
virt.tests: sync fio test to autotest_control testsuite

Signed-off-by: Xu Tian <xutian@redhat.com>
virt.tests: sync unixbench5 to autotest_control testsuite

Signed-off-by: Xu Tian <xutian@redhat.com>
virt.tests: sync wb_kupdate test to autotest_control testsuite

Signed-off-by: Xu Tian <xutian@redhat.com>