set_clock_latency constraint affects writing .lib timing models

[mo-hosni]

set_clock_latency does add the clock latency to the hold times of each pin. This should be ignored the same way set_input_delay is ignored.

Also, set_input_transition affects the hold/setup values for the pins. This is okay as the values are scalar rather than tables as functions of the input transition. However, the tables would be much better so that the input transition constraint won't be used and the model will be more context-independent.

To reproduce:

sta-reproducible.partaa.zip sta-reproducible.partab.zip sta-reproducible.partac.zip

Comment/Uncomment the clock latency constraint in ./files/home/hosni/caravel_aes_accelerator/openlane/aes_wb_wrapper/signoff.sdc then run using the script run.sh