[lib][trusty] Add mechanism to restrict sending handles over IPC.

Handle marked with HANDLE_FLAG_NO_SEND flag will not be send over.

Disallow sending handle sets over IPC as there is no mechanism to
translate handles they might contain into context of different
user space process.

Change-Id: I205668b2fcf1973b3bc35e392c3abf60b4c1ec36
4 files changed
tree: 66bcb7c0d0d765b0da17e224f777710538735d40
  1. app/
  2. include/
  3. lib/
  4. make/
  5. platform/
  6. target/
  7. AUTHORS
  8. LICENSE