Android.bp: Introduce libminikin_defaults am: 35a6ffe9a6

Original change: https://android-review.googlesource.com/c/platform/frameworks/minikin/+/2310619

Change-Id: Ib9d9fdb0dcd14a403be288e37a27e36ad81cdc50
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>