Add IwlanCarrierConfig#putTestConfig*() utilities am: 792a63cc31

Original change: https://android-review.googlesource.com/c/platform/packages/services/Iwlan/+/2966404

Change-Id: I08485045eb01b813ca311adc8795f8d06a103c2f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>