[DataStore] Log datastore name when data changed

Bug: 325144964
Test: Check logcat
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:a93d2ba1ea52f91e8746ab63172e6ac43bfb1088)
Merged-In: I3ce79ea50fc9bdfffff666714fa672df6cc47b11
Change-Id: I3ce79ea50fc9bdfffff666714fa672df6cc47b11
1 file changed