sanitycheck: fail on faults/panics/oopses

Fail in tests where we have an OOPS or a panic. Right now and in many
cases we continue and test case might be reported as PASS.

Cases that have the tag ignore_faults will ignore those faults (cases
that are testing faults for example).

Signed-off-by: Anas Nashif <anas.nashif@intel.com>