[project] Add el3spmc build variant am: 6b02444a2a

Original change: https://android-review.googlesource.com/c/trusty/device/arm/generic-arm64/+/2731564

Change-Id: I3e5bc511dfc1c3dd7cd15a99002131a97063b730
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
tree: 62810d6a798e02e5c231ea9c147dbcc585db0d27
  1. project/
  2. .clang-format
  3. LICENSE
  4. PREUPLOAD.cfg