Enable STL in system/keymaster. am: c0f1efe6f9 am: 7c267e4c5e am: a1eaecd37e am: 4105869dc9

Original change: https://android-review.googlesource.com/c/platform/system/keymaster/+/1674706

Change-Id: I6e10e27c8448b57afb76ed319f45e55d12b6b4d5