- Add the no confidentiality & no replay protection flags
- Add actual size parameter in PS/ITS get APIs
- Change a few size parameters from uint32_t to size_t
- Move all PSA storage code under psa/storage directory
- Create a global PSA error codes header, eliminating ITS specific ones
- Create a common header file for PSA storage type definitions,
eliminating ITS specific ones
- Create a common implementation for PS & ITS
- Implement protected storage feature
- Change ITS test to be common to PS as well