[lib][trusty] Do not return internal errors from SMC handlers

All calls going into SMC_ENTITY_TRUSTED_OS MUST return
SMC_XXX errors. There were cases where internal errors
were returned instead.

Change-Id: I555b7301cffe3c5125a4e24cc81432d5e66c5b23
1 file changed
tree: 1bc35163fbdc292637fa2406aac798805b9d044c
  1. app/
  2. include/
  3. lib/
  4. make/
  5. platform/
  6. target/
  7. AUTHORS
  8. LICENSE