[chip dv] Enable logs to show up in waves
[chip dv] Enable logs to show up in waves

Being able to see logs from SW test directly in waves is useful for
debug. This capability existe, but got inadvertently disabled when we
disabled `debug_access` for VCS as a part of our sim optimations effort.

This PR reenables this capability by changing the datatype of the
printed log from string to integral, so that the logs can show up in
waves without requiring extra debug accesses.

In Verdi (or your favourite waveform viewer), the log can be added to
the waves from here:
```
 /tb/u_sim_sram/u_sim_sram_if/u_sw_test_status_if/printed_log
```

Signed-off-by: Srikrishna Iyer <2803d640feace36379942447842f26c7747b4dc3@google.com>

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