Implement and test BAD_STATE in multipart operation setup

[gilles-peskine-arm]

Description

Setup functions for multipart operations should return PSA_ERROR_BAD_STATE if the operation structure is already in use. #11 updates the documentation. This issue is for implementing this and adding corresponding negative tests.

Issue request type

[ ] Question
[ ] Enhancement
[X] Bug

[ciarmcom]

Internal Jira reference: https://jira.arm.com/browse/IOTCRYPT-631