[automerger skipped] [DO NOT MERGE] Add support for experimentally enabling...

[automerger skipped] [DO NOT MERGE] Add support for experimentally enabling RBE support on specific rules. am: 4807a1b5 am: 5cde33dd -s ours am: ab718efe -s ours am: dd1d3f3e -s ours

am skip reason: Change-Id Ic82f3627944f6a5ee7b9f3228170c2709b1bfcb8 with SHA-1 4807a1b5 is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/build/soong/+/12467707

Change-Id: I0ced8ec8f1b03526641fadcdd67c605717558fd5