Sandbox bluetooth genrules

These genrules work with sandboxing already, they just had
non-determinism that lead genrule_sandboxing.py to think that they
didn't.

Non-determinism sources include:
 - HeadlessBuildTimestamp literally just generates a header file with
   a timestamp, not much we can do here other than re-architect their
   code.
 - Pdlc has a non-determinism issue I sent out a cl to fix:
   https://github.com/google/pdl/pull/85
 - Python tools write the command they were ran with to generated files,
   and non-embedded-launcher python scripts have non-deterministic
   paths. Switched to embedded_launcher: true: aosp/2825231
     - In addition, the path to the genrule sandbox is not
       non-deterministic, but it is a hash of the inputs to the sandbox.
       When running genrule_sandbox.py, it compares a "partial" sandbox
       (which only sandboxes tools) to a "full" sandbox, and these two
       runs have different sandbox hashes.

Bug: 307824623
Test: Presubmits
Change-Id: Ib966262dc1aac99a0798f26d8a03966cc97fe1bf