smc: Add request validation to smc service access policy

The current service access policy can deny or allow access
to smc calls based on the app UUID. Add the ability to deny
an smc call based on the contents of the request.

Test: build.py --test com.android.trusty.smc.test
Bug: 244776134
Change-Id: I4bfa8819fc60088b39fcdf21b9efe5ad9378a754
4 files changed