Log atoms for emergency

Collectig metrics for consolidated emergency numbers updated in
framework and dialed emergency number,

Bug: 233263956
Test: m statsd_testdrive
Change-Id: I5f4c53cbdb4796f57d75b11855093a9d9b384022
Merged-In: I5f4c53cbdb4796f57d75b11855093a9d9b384022
(cherry picked from commit 8de15f93)