Merge "Add links to partner docs for presigned apks" into main am: ad6a20f3

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/3268012



Change-Id: I2fe7e1ff79bc978c4e2054e0d6cb71e59e1183ef
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>