Read DNS query log settings from system property am: 5f01f311 am: c7bef5d3

Original change: https://android-review.googlesource.com/c/platform/packages/modules/DnsResolver/+/2564476



Change-Id: I73a721b212dbde61a5d7b0f5f9d374b229c42caf
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>