Merge identical key/val pairs in dynamic partition info am: f4406ca1

Original change: https://googleplex-android-review.googlesource.com/c/platform/build/+/18205260



Change-Id: I815f9616fc106f4a9895e06bbc5f1962658b24d8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>