For tracing all test-suite benchmarks a few modifications on the
test-cases had to be done in the FAIL case:

- remove long busy wait states
- There has to be at least one instruction between two system
  call. Otherwise trace-analyze cannot easily distinguish both system
  calls.

Also the trace-analyze.py had to be fixed at a few places.

Change-Id: I8a9e19f08140526b8d688653248227f5fc5490ed