This task is used to improve the context allocation and retrieval module in the TFM Crypto service following observations raised during code review related to other patches. In particular:

1. The tfm_crypto_operation_alloc() API can alloc and return the allocated context with a single call without the need to a subsequent trm_crypto_operation_lookup()
2. The alignment of the operation context pointer should be checked for misaligned access before dereferencing