[automerge] Read GNSS measurement from device file when available 2p: 65569272ad

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/16887733

Bug: 190757198
Change-Id: I928e8de3092c6cda8b364d7377f12d1c62267649
Merged-In: Ic03d56a5df6b99f7b20c5840e7091ead138316b1