Fix libnetworkstats_test. am: 0db496ef39 am: 02d394fcf4 am: b7fcd6d45c am: 46fbdf4ac3

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/1973862

Change-Id: I0352203b039e5c2463594fd7b1d60271f547c870