Merge "Add mainline dev certificate dir to config" am: e0ac9f74

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2185477



Change-Id: I0014fd54a432a0a8054c953711ac5fadf54fdd54
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>