[automerger skipped] Fix the signing error in gsi_arm64 builds am: 81e841722e -s ours

am skip reason: Merged-In I551e14fa6a0c63e3cef334b953f670cf9c465e10 with SHA-1 36981b54f0 is already in history

Original change: https://android-review.googlesource.com/c/platform/build/+/3433400

Change-Id: I7ee51e181a86aa7b806913ff9ca091aea678d9e6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>