Merge "Add APIs to test_com.android.sdkext module" into rvc-dev am: 0e02ab5b25

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/SdkExtensions/+/11680849

Change-Id: I8dae07b908c0c58e69ef163b85cdfc1e2b61f716