oeqa/runtime/parselogs.py: Add ignore of tsc calibration fail in x86

oeqa/runtime/parselogs.py: Add ignore of tsc calibration fail in x86

We are experimenting failures to calibrate CPU's using TSC in x86
VM's due to usage of nested KVM [1], this is a known issue [2][3]
in virtualization environments, for detail explnation see [4].

Also we already have an ignore for 'TSC Fast calibration fail'.

[1] http://errors.yoctoproject.org/Errors/Details/83684/
[2] https://bugzilla.redhat.com/show_bug.cgi?id=814231
[3] https://lists.nongnu.org/archive/html/qemu-devel/2010-09/msg01547.html
[4] https://www.kernel.org/doc/Documentation/virtual/kvm/timekeeping.txt

Signed-off-by: Aníbal Limón <anibal.limon@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>