[automerger skipped] Merge "Add function to export default values for RBE...

[automerger skipped] Merge "Add function to export default values for RBE related variables" into rvc-dev am: 9bd7223a -s ours am: df44e2eb -s ours am: b2e36662 -s ours

am skip reason: Change-Id I429835f1bb6da75e2fcee7e9ddac6b11672121cd with SHA-1 3491bbdb is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/build/+/12445425

Change-Id: I8f5468378a8287dfa72ad9bd34af916f236dfac4