Merge "Add explicit experimental marker for Linux terminal" into main am: fc4529bfd2 am: 5c73536dc9

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/3343544

Change-Id: Ibb799337de80494ded9262ab86c51c93c5a3410e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>