Add lint baseline to address NewApi errors am: 81be76f836 am: aaa189659c

Original change: https://android-review.googlesource.com/c/platform/frameworks/libs/net/+/1675805

Change-Id: Ie359c560aa0ce12eb58d9762bd503276bcec5511
tree: ecd3b1f57f333418d43f8a5433e87c6e46e677c8
  1. staticlibs/