Add the ability for a java_sdk_library to depend on another. am: e570ace2

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2844082



Change-Id: Iac17dd61875b799fbf6d399401beffc89d463e9c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>