Update git submodules

* Update platform/system/bpf from branch 'master'
  to 16c9360b1fd39991eec3da9f4f534e5f96c6bd00
  - Add socket filter to allowed programs for vendor and remove tracepoint
    
    This also fixes a permissions issue if a non-root user is set. The read
    permissions should be set before the file is set as non-root to ensure
    that the permissions can be set without error.
    
    Bump the BPF loader version.
    
    Bug: 203462310
    Test: Ensure that vendor skfilter bpf programs can load
    Change-Id: Ib6b9a64d8652ff464c9d4d734bb8ae351673b6ce