The following tests are failing when run on ppc64 and are designed for
x86 architecture.

Moving them to the x86's test list.
Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Acked-by: Andrew Vagin <avagin@odin.com>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>