[automerger skipped] Add FAILED: prefix to RBE Fatal error message" am:...

[automerger skipped] Add FAILED: prefix to RBE Fatal error message" am: 907bbdfc am: 9ba871bb -s ours am: 41a0ece7 -s ours

am skip reason: Merged-In Ie0c9acee2739acf149384e33804b5fca3273c24f with SHA-1 1e4d5f3e is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/build/soong/+/15625816

Change-Id: I956d74e546d372ff54ce32b95a521fdaefd03f64