[SP03.1] Replace com.android.internal.util.Preconditions.checkNotNull

Extracted from ag/9990011 to make NetworkStatsManager sync with internal
line, given that it is missing in aosp/1198084.

Bug: 126528330

Test: Treehugger
Change-Id: I77f50326869799f51d4636cb7c6d7c97daf531e6
Merged-In: I42117ebfb640e3b0b133183e5e146860bed8471a