Add optimization blacklist as second arg to optimizeForMobile method. (#37462)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/37462
Instead of running all the optimization pass in optimizeForMobile method,
introducing a whitelist optimizer dictionary as second param in the method,
when it is not passed during calling, the method will run all the optimization
passes, otherwise the method will read the dict and only run the pass with
value of True.
ghstack-source-id: 106104503
Test Plan:
python test/test_mobile_optimizer.py
Imported from OSS
Differential Revision: D22096029
fbshipit-source-id: daa9370c0510930f4c032328b225df0bcf97880f
