Update git submodules

* Update system/iot/attestation from branch 'master'
  to 1ce107c299a915d4e4022660ec9be65cb65a653c
  - Change memset in fake_op to atap_memset.
    
    We should use atap_memset that does not depend on string.h for
    fake_atap_ops.
    
    Change-Id: I111751d7b403f54d7c456a527bcee240c3f2af08
    tests: Host unit tests compile and pass.
    
1 file changed