Merge "Replace security_context_t type" am: 0568338670 am: 760547e263 am: 4622dfddb5 am: b753c5a9de

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/1827242

Change-Id: I876d748bd78f8c5e023bb925f1be3e2ad2c24550