Create DataRatStateChanged atom

Test: Inpected log on device
Bug: 318519337


(cherry picked from commit 5e679af22c6350c4b6f310b69b2128274a299779)
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:162b5168cec522fb8d7ecb7aa1135f9ecbba97cd)
Merged-In: Ica5fb4cee6b67344f0e5ebdbf4be6d266cbc40e4
Change-Id: Ica5fb4cee6b67344f0e5ebdbf4be6d266cbc40e4
2 files changed
tree: 19a691ec22c485f73ecf61f5d6309029ef5bb05c
  1. stats/
  2. OWNERS