trunks: Generator bugs

This patch fixes a few bugs in the trunks generator.
- Argument with type TPM2B_ENCRYPTED_SECRET was occasionally
  not parsed due to errors in raw_structures_fixed.txt. Affected
  commands Duplicate, MakeCredential, and Rewrap.
- Arguments with types INT[0-9]* were not parsed due to a bug
  in extract_commands.sh. Affected commands PolicySigned and
  PolicySecret.
- Argument with name returnCode is part of the header, not a
  parameter. Affected commands ClockRateAdjust, ClockSet, and
  ReadClock commands.

BUG=None
TEST=Passes all unit tests

Change-Id: I075f7c9fe64b7c1663f8ae6a5b8e8a0387c411aa
Reviewed-on: https://chromium-review.googlesource.com/286840
Reviewed-by: Utkarsh Sanghi <usanghi@chromium.org>
Commit-Queue: Jocelyn Bohr <bohr@chromium.org>
Tested-by: Jocelyn Bohr <bohr@chromium.org>
7 files changed