Use BoringSSL's public API in keymaster_hidl_hal_test am: 727f1ed7f3 am: ba14346ea7

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2588645

Change-Id: Idfea18ad582d7d4fbf5944a537f714ba6eb6083b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>