Add a test config template for doh_ffi_test am: cdc6d3bb

Original change: https://android-review.googlesource.com/c/platform/packages/modules/DnsResolver/+/2306303



Change-Id: I596da0cbc90c87c88f90f128eaa63a2836952920
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
(cherry picked from commit be8d1a36)
Merged-In: I596da0cbc90c87c88f90f128eaa63a2836952920