Add google_prod_creds to the list of auth mechanisms am: f7574b54 am: f6c29aa6 am: 6e9b4d65

Original change: https://googleplex-android-review.googlesource.com/c/platform/build/soong/+/18890432



Change-Id: I8111a5e6e49fff5b4b25dbaab8722c065702d597
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>