[RTT] Add API for number of measurements

Add information about the number of attemped and successful measurements
used to calculate the final results (especially critical for standard
deviation).

Bug: 76445930
Test: unit tests & integration tests
Change-Id: I801a6e0cbceebf9ea01dfb555d7b66ba04444413
3 files changed
tree: 5f71095557567ff132cb208af28d1c7f1bb227ed
  1. service/
  2. PREUPLOAD.cfg